What is Robot Hayes

What I am doing at Robot Hayes

Dr Toby Mottram FREng, FIAgrE

After a career in farming and engineering I decided I wanted to contribute my expertise to solving the biggest problems in the UK providing fresh, healthy food in a rapidly changing climate. In my opinion UK Government sponsorship of agricultural research has had very little impact on farming and quality food production that has diminished in my lifetime. The reasons for this failure would take an angry book to discuss. I prefer to be active by doing what I think is important on my own land and lead by practical example.

The key things I want to work on are:-

  • the loss of connection of the people from the ability to grow food
  • the overuse of agrochemicals
  • the changing climate particularly in rainfall patterns
  • the improvement of soil carbon levels
  • the production of vegetables and fruit throughout the year
  • reducing the drudgery in field work with robotic tools

In 2022 after a long search during those strange isolational years I managed to buy an unnamed field in Devon. I chose it for its South facing aspect, fertile Pebblebed soil and easy access from a busy main road. It is not far from Exeter and I suspect that in a few years it will effectively be a green island in the suburban sprawl favoured by the District Council.

My first actions were to give the field the name Robot Hayes to reflect my aims, plant shelter belts to reduce wind damage in the long term, install a polytunnel to extend the growing season and a lockup container for tools and seeds. I divided the best part of the land into 48 x 100 sq m allotments and began renting these out to local people. That brings a whole different aspect to the field which I suspect was basically a sheep run and hay field without a single human for 360 days a year.

After adding some solar panels I was able to install a small robot inside the polytunnel to manage the vegetables with image processing and controledl watering and weeding. In the second winter I began planting fruit trees and vines. Of course the first things that happened was a heatwave in 2023 and then a wet wet growing season in 2024. This convinced me more and more that the management of field crops in the UK needs to adapt.

The heavy rain that seems to becoming common is now capable of damaging growing plants and washing away topsoil. Although average temperatures are rising we also get sudden bursts of polar wind that can cause frost damage.

So we need to integrate more rows of sheltering bush perennial crops, shade and rainbreak covers, and ventilated polytunnels. This of course is in addition to planting, growing and weeding without resort to chemical warfare on the environment, while protecting crops from rabbits, deer and insects.

What is Robot Hayes about ?

After two years of hard work it is time to start talking about Robot Hayes

Most British people now get a large proportion of their calories from processed and ultra-processed food and drinks stabilised chemically for a long shelf life and these foods are associated with rising nutritional disorders such as obesity and type 2 Diabetes. The cost and scarcity of labour close to our cities has caused retailers to source “fresh” food from distant areas such as Spain, Peru and so on. The changes to the ecosystems in areas such as Murcia in Spain are dramatic and unsustainable thus reducing food security. Growing our own vegetables and fruits close to the point of consumption has to be a key policy objective for the new government. We need to encourage more local production and the development of labour saving technology and this is what I have set out to do at Robot Hayes.

I have had a long career in agricultural engineering research co-inventing robotic milking, and developing sensors for monitoring dairy cow health and fertility. During the pandemic I sold my two start up businesses and used the money in 2022 to buy a small south facing field with good soil and road access so as to do my part in solving the food crisis which is destroying people’s health. The word Hayes is common in Devon signifying an enclosure or field so as I will develop and test robots here I gave it that name.

I now rent out 100 sq m allotments to local people to grow whatever they want. . The allotment system has been around in the UK for centuries but fell into the hands of local authorities who have been slow to respond to the huge demand for people to grow their own food. Allotment areas have long waiting lists even as some plots fall into disuse. A mature allotment area is often the most biodiverse area in the urban environment. There are hundreds of people on the waiting lists for allotments nearby. In the area East of the M5 at Exeter eight thousand (8000) new houses and flats are planned to join the 1000s already being built at Cranbrook with tiny gardens within a couple of miles of my field.

The enthusiasm of my dozen or so gardeners is overwhelming and a genuine community spirit is developing with many young families. I love the sound of children’s voices as they play in the gardens. Already we have buzzards and owls flying over as the vole and field mice populate the uncultivated fringes of woodland that I have planted and herons look for prey in the ponds. I daresay some existing locals will dislike the visual intrusion and prefer vast empty fields of commodity crops. More farmers should offer allotments, it doesn’t require planning permission and has a margin per hectare ten times that of cereals.

A view of a vegetable garden surrounded by insect prevention nets
One of our newly established allotments

I retain a number of plots for myself so that I can develop systems to make organic vegetable production less labour intensive. No-one enjoys weeding vegetables, it is back breaking and continuous during the growing season. Our rental contracts are based on the typical local authority contract but with more flexibility and we have a few site rules such as no chemical pesticides or fertiliser so the emphasis is on innovating organic types of husbandry.

I bought and installed my first robot in a polytunnel in 2023. It is an open source design from farmBot in California using a Raspberry Pi computer running in the Python language and has many features that I have not had a chance to explore yet. I mostly use it for watering and hoeing and this winter I hope to demonstrate fresh vegetable production in our mild Devon climate. It needs to run in a polytunnel raised bed to protect its electroonics and aluminium drive rails from the weather. Because of its precision I think I will focus on raising seedlings of exotics (peppers and spices etc) in pots for planting out in the spring. With my hard won expertise I think we can start offering robotically managed polytunnels to hotels and restaurants and private houses locally to grow their own organic produce with minimal labour. I need to find a business partner who can focus on developing that business.

A view into a polytunnel with vegetables in straing rows with a gantry robot in the middle
The first robot at Robot Hayes was bought from farmBot and installed in a polytunnel

Polytunnels have their place but we can grow a lot in open field situations and this is the focus of my engineering activity this year. I currently have a Defra funded Farm Innovation grant managed by InnovateUK to develop safer working practices for horticulture. I cannot say too much as some of the technology that I and my small team are developing will be patented. Our focus is to convert existing tractors to be more precise and safe. Modern SatNav systems can accurately position a hoe blade to within a centimetre of a target, which means that we can develop sowing and weeding systems that do not require manual labour. Cutting and porting vegetables is still very labour intensive, often on muddy winter fields so we need safety systems that will stop a machine if someone is in danger. Farm accidents with moving machinery are still common and we need new technology to reduce risks.

Is the the end of the ag robot swarm ?

An academic agtech dream has died

I am personally sad that Small Robot Company has gone into liquidation. Personally sad because I invested in it but also because it is probably the end of an academic dream that friends and colleagues believed in passionately. The dream failed to make it to market for a number of practical reasons.

  • Finance
  • Minimum Tillage
  • Weeding
  • Harvesting

Finance. Interviewed on BBC Radio 4 Farming Today the founder of Small Robot Company blamed the Agtech financing climate in the UK and I would agree from my experience starting eCow, Milkalyser and VirtualVet there are few investors or funds willing to take long term high risk investments in UK agtech. Investors mostly want companies with proven products and sales. Any company developing hardware that needs to be tested and developed over a number of seasons is going to struggle. Even if the product works and sells the cost of scaling is immense. Investors love software start ups because testing is usually quite quick and upgrades can be cheaply sent out over air. There is plenty of evidence that the Silicon Valley model of funding does not work well in farm machinery. These are not fast moving consumer goods bought as fashion items.

Minimum Tillage. For years the concept of reducing the soil compaction associated with heavy machinery has proposed that fleets of light weight robots could replace the heavy machines needed for field operations. The Tom robot mapped pests and then returned for spot spraying. The concept was that the major time cost for human labour could be replaced by a few machines taken out to the fields that would quietly work away. However, I think the real problem of compaction came from the previous fashion for deep tillage which requires huge motive power and thus heavy machines. Minimum or even no till requires a completely different approach with use of tramlines and accurate GPS. If spraying is to done then 24 m passes on tramlines and lighter machines that could be automated rather reduce the argument for the swarm of small robots.

Weeding As we move away from spraying weeds towards steered blades, electrocution and lasers we reintroduce the need for power on the implement. My abiding memory of the wonderful laser weeders working rocket beds is the sound of the diesel generators needed to power the servers and lasers. These will not be powered by small machines in the near future. Blade weeders need traction and good electrical supply too for the imaging computers.

Harvesting The biggest machines we always see are always harvesters after all we planted kilograms of seed and expect to harvest tonnes of crop. Cereals and forage crops get harvested when soils are dry in summer when compaction is lower risk but the high value vegetable crops with big labour demands have to be brought in over often soaking soils so again we need power.

In my view the future of field robotics is to develop systems that allow farmers the flexibility of use of tractors and implements with automation tools that for routine field operations do not require a driver. I am working on remote control systems that can be used from off the seat but stop safely if humans are in danger around the machine. Only the largest farms can justify machines that can do limited operations.

Why Artificial Intelligence (AI) will not create robot tractors

Twenty years of incredible development have failed to replace humans as drivers.

Twenty years ago DARPA who sponsor advanced research in the USA ran a competition to develop a vehicle to save lives of the US military. This was hoped to lead to autonomous vehicles. This excellent book takes us through the exciting developments of the past 20 years of sensors and systems but we still have no autonomous vehicles on public roads. Exciting, and initially tech driven, the competitions in the Mojave desert are particularly well described. The first failed to find a vehicle that could complete the course but two years later several vehicles managed the 150 miles of rugged terrain. The action then moves to the even more dynamic environment of urban driving and the businesses that were created and failed to deliver a safe system to replace the human skill of driving. There is so much in this book of interest to engineers, drivers, business people and investors still looking for the secret sauce that will bring sensory intelligence to robots. Things that humans do with ease are difficult for robots and vice versa. This is Moravecs paradox explored with billions of dollars of investment money from Google, Uber, Ford, GM et al. and still there are no autonomous vehicles regularly on the road.

For me, with a Defra funded innovation project to develop safe working systems to stop tractors killing humans and animals this is a key text. The book maps out the development process that failed to constrain the operational design domain and demonstrates the hubris of some inventors one of whom ended up in prison for IP theft. The desire for a complete system prevented the development of the aftermarket of conversions of existing vehicles that could evolve autonomy. Whilst deep learning techniques of showing many tagged pictures of cats to a computer can teach it to recognise a cat, this has proved insufficient to learn the complexities of navigating a road without accidents.

For me this is welcome. I am disappointed with the displays of robotic tractor systems and there are many now appearing, they seem to have to have a narrow focus and few farms are big enough for a single purpose machine.

I want to keep the flexibility of the existing tractor fleet and provide a conversion kit that allows them to be used in many tasks, anything from feeding animals on a frosty morning or carrying tools and posts while fencing. I have defined a few problems where humans work with tractors and spend a lot of time jumping on an off and driving short distances.

#tractor #robot #farming #defra #innovateUK #horticulture #robothayes

The Digital Tractor

I recently gave a talk about tractors and robots to the #Landwards Conference of #IagrE

There is a lot of investment and hype going into robotic field machines very often to do specialist tasks in high value crops. The “robots” can generally do one or two specialist jobs which is fine if you have hundreds of acres on which to recoup the investment . I think a better option is to convert our existing tractors to be switchable between a driverless mode and manual control. Tractors are extremely versatile machines capable of many tasks and drivers are similarly versatile and given that new robots come with a price tag in six figures and a secondhand tractor has a much lower book value we should be consolidating designs for conversion.

In parallel we need to develop safe working practices into the design of the sensors with which digital tractors must be equipped. In horticulture many processes such as weeding and harvesting still rely on skilled manual workers in close proximity to moving machinery. We need to protect workers from harm quite apart from any delays and holdups dealing with iincidents. So the tractor should be building a digital record of its operations which will include video using the sort of technology now common in dashcams. The data can then be used to train new teams.

#digitaltractor

Vegetables in a changing climate

Devon has a very mild climate with summer heat and winter chill moderated by the sea but even here we see the climate changing. This June it was so hot that my clay soil dried out to dust after a wet winter, temperatures in the polytunnel went over 50C. As for rain we seem to get showers so heavy that they smash plants and wash out any exposed soil.

I would love a greenhouse as the technology has advanced hugely and makes a perfect platform for robotic management even down to picking and packing vegetables but the capital costs are huge (say £20k for 100 sq m) and running costs subject to uncontrollable fuel cost variations.

So I need more flexible methods of controlling the exposure of plants to the elements at a reasonable cost. At the Venice Biennale I saw a very interesting exhibit of Taiwanese farm buildings evolved to manage their high value fruit and vegetable crops in semi tropical latitudes but with mountains that have cold and snowy conditions. They also get typhoons with very high winds and extreme rainfall.

This summer I used a tarpaulin over the polytunnel to reduce the solar exposure but this is a temporary and difficult to manage option. A polytunnel can of course be adapted with different covers and ventilation but it is hard to change the covering as we bury the sides in soil to stop the wind blowing the covers away.


Figure 1: Model of a fruit farm growing under a frame with an extendable shade/rain filter cover

The Taiwanese style is to create a rigid frame maybe 2.4 m (8’) above ground with tensile wire between the rigid frames that can support crops like tomatoes and beans and also provide a guide and support for covers that can be winched into position as required. I am going to try and experiment with these next season to understand the practicalities. We don’t get typhoons in Devon but we get a lot of wind and periodic heavy rain. I think I will use a mesh of plastic to allow rain to percolate and shade to stop severe burning.

a model of a vegetable plot cover by a permeable cover about 2.4 m above the crop

Robot Hayes allotments

I am renting out 100 sq m allotments on a gentle south facing slope of Pebblebeds soil on the west edge of Aylesbeare, Devon. The field has been a sheep run and hayfield for many years and not treated with chemicals. I bought it last year as place to develop new techniques in robotic horticulture and I have created 48 plots that I rent out on allotment style leases, many are still available at £60 a year (incl VAT). I have planted shelter belts and dug water holding ponds around the perimeter which will provide a wild life zone and shelter belts in due course. My aim is to create a community food resource over the years. This winter I will plant more trees including some exotic fruits and nuts as our weather is changing to hotter and wetter conditions and we need to adapt. Contact me if you are interested. Instagram @robothayes linkedin.com/in/tobymottramdigitalagritech

  • Pebblebeds soil
  • south facing slope
  • Mains water
  • Main road access and parking off A3052
  • Close to Nine Oaks bus stop (9,9A)
  • One robot installed in polytunnel, another in development
  • what3words: perplexed.picture.dusters
Address and map

Food shortages caused by flooding

trucks in floods
Photo by Jéan Béller on Unsplash

The globalised trading network that grew up with the rise of China and the collapse of the Soviet Empire has massively changed where food and other goods are produced in relation to their markets. However, the fragility of this network was brought home during the Covid-19 pandemic and its aftershocks. For my business two packages shipped in March 2020 were stuck in airports and customs facilities for months causing a loss of major customers. Similarly, sudden changes in politics such as Brexit and the invasion of Ukraine and subsequent sanctioning of criminal gangs led to major disruptions to fresh food trade in UK and the Black Sea trade in grains to Africa and the Middle East. These political driven disruptions will be overcome but a more fundamental long term threat is disruption to food supply due to climate change.

In 2023 there have been major storms and floods that have damaged the transport infrastructure in numerous places. Countries around the world have seen major floods with smashed bridges, washed out roads and huge damage to croplands in China, Greece, Libya, Slovenia to name a few (www.floodlist.com) . Climate change is bringing more intense rainstorms driven by a more dynamic atmospheric hydrological cycle. These lead to flash floods particularly in urban areas where water cannot be absorbed by non-porous surfaces. The world’s most productive land is often situated in riverine and coastal littorals that are at greater risk than ever of flooding.

The disruption to fresh food supply is particularly a risk as the products are perishable and need to be delivered within a minimum few days of harvest via a cold chain network. A disruption of a few days is a serious matter and thus it will become more important to develop short supply chains to reduce the risk of disruption. This is a strong argument for local peri-urban horticulture.

Commercialise your inventions

This is a chapter from a book Practical Precision Livestock Farming published by Wageneingen in 2022 in which I wrote about my experience of trying to commercialise my inventions both as a government scientist and commercial entrepreneur.

I describe four models for commercialisation and my experience with each

1: License the technology to an established company

2: Open source intellectual property

3 Institutions can create a spin-out

4: Start-up your own development company

  1. Introduction

The world economy and much of our daily lives is dominated by tech developed by companies (Microsoft, Facebook, Apple, Google, ARM, Amazon) that were founded in garages by enthusiastic amateurs within the career span of this author. These are companies that scaled to prominence quickly through internet distribution of software and electronic devices. The teleological explanation is that their growth was inevitable because of the brilliance of the idea and how they monetised that idea in their offering to the customer. But for every company that is a success on a large scale there will have been many small scale failures often with equally brilliant ideas. Ninety percent of all start-ups do not last a year or even produce a minimum viable product (MVP). In addition, there are many successes that scale up rapidly to huge valuations but wither and die, as either they bet on a particular technology platform and are overtaken by events. Some very large tech companies have been prominent for a few years and then withered away (AltaVista, MySpace, MapQuest, Netscape, Palm Pilot, Blackberry). The world of agritech startups is unlikely to nurture the huge scaling that seems inevitable from looking at the history of Microsoft, Google, Amazon, Facebook, Zoom and their like. But that scaling has created an expectation that tech companies are a guarantee of future wealth for the investora and founders. This is sadly not the case.

In the 1970s I was a naïve hippy and self sufficient farmer wannabe. There was a serious back to the land movement of young people in those days who had been inspired by Rachel Carson’s Silent Spring and the Club of Rome report about how pollution was killing the natural resilience of ecosystems and that we were running out of reseources. Self sufficient farming in the old style was all the rage with an emphasis or organic as the answer to all problems. I took myself off to Galloway in SouthWest Scotland where the farming was less mechanised to learn the skills of old style farming that I thought I needed to be a self sufficient peasant. All those old skills that change with the seasons on a mixed farm growing forage crops for animals and selling milk and livestock are brilliantly described by James Rebanks in English Pastoral (2020). So I learnt to drive a tractor and plough (badly), sowing, reaping and binding. I preferred the livestock skills, lambing hill sheep, shearing sheep, calving cows and milking dairy cows in a warm byre. Years later when I entered the world of research and development the muscle memory of those skills stood me in good stead. Just knowing how much physically embedded knowledge is built into the experienced stockperson was very useful when it came to assessing the utility of yet another clever idea dreamt up in an academic environment.

The other thing I learnt was the sheer arduousness of physical labour in farming even in the semi-mechanised agriculture of the 1970s and eighties. I could see the steady disappearance of labour as people who had grown up as “farm servants” aged and retired. Throughout Europe people have largely rejected the hard life of a self-sufficient peasant and prefer to buy food grown and packed elsewhere on farms of increasing size and technical sophistication. Supermarket shelves are always full with packets of tempting looking meals which are so much quicker and easier to cook than garden vegetables and local produce. That trend seems to be spreading throughout the world with an accompanying demographic shift reducing the number of humans available to work on farms. Every so often keen idealistic people go back to the land but they rarely sustain the enthusiasm for more that a couple of seasons of hobby food production and the economic viability of small scale organic farming is limited unless sustained by a retail operation.

At the end of the seventies I moved with my young family back to my home area in South West England and took to contract milking cows, as that gave me a good income from which I could save towards buying and renting out property to participate in the house price inflation that enriched property owners through the 1980s. It also gave me flexible time to study. I realised that the hard physical labour in farming had to be replaced by automation and overcame my early neglect of education by studying for a degree with the Open University which was largely a set of engineering courses with a couple of modules in agriculture. After graduating I briefly lectured in agriculture in Cornwall before moving to Silsoe College to undertake a Masters Degree in Agricultural Machinery Engineering. I had got a taste for the research life and went on to do a staff registered PhD in the automation of milking.

In 1989 my wife and I were able to buy our own place – a ruined pig farm with hardly any land but planning permission for a temporary mobile home. Over a number of years we built up a successful goat farm selling milk to a creamery making specialist cheese. Every weekend I was milking goats, trimming feet and building more space for the growing herd. Eventually we showed it was a viable business and we were able to get permission and build our dream house. At that stage with our children leaving home we were confronted with the challenge of the empty nest and a lack of successors wanting to take on the legacy of farming. I meet a lot of reluctant farmers who have taken over the family farm out of a sense of family duty. Some never really get to run the farm as Dad is keeping an eye on things and controlling the operations. We decided to sell the farm and I took up a position as a Principal Scientific Officer at Silsoe in 1999.

In parallel I was working for Silsoe Research Institute as project leader in automation of milking systems and I led the team that built the UK’s first robotic milking system barn at Cheseridge Farm, Institute for Animal Health to house the technology developed by Mike Street and his team. This robot was later commercialised as the de Laval VMS which celebrated its 20th year on the market in 2017. When we started the project we made a list of 26 reasons why a robot might not successfully milk a cow and steadily worked through an experimental program to show that things like cow behaviour, morphology, cleanliness and temperament would not be a barrier to robotic milking and so it proved. It became very clear that cows do not volunteer to be milked they volunteer to eat and all robotic milking systems are defined by some form of traffic management so that as cows go through their day looking for snacks they have to pass through a station where they are usually fed.

In the 1990’s life in agricultural research and development in the UK was a struggle with the continuous need to find new sources of money. Following the free market ideology of Margaret Thatcher, governments withdrew from supporting experimental husbandry farms and practical farm research. The argument ran that as a rich country that made its money in manufacturing and financial services, the UK could purchase food on the world market and that supporting agriculture was for social benefit rather than food production. The practical development work of new systems of farming was deemed to be the role of industry as it was “near market”. The Agriculture and Food Research Council was renamed Biological and Biological Sciences Research Council, funding was to be aimed at “pure research” measured by papers in prestigious scientific journals rather than demonstrable improvements in farming techniques. This policy was also backed by a desire to patent our “blue-sky” inventions and licence the IP to any company willing to pay the price for it. This policy gained some credibility when in 1995 the government agency responsible (British Technology Group PLC) for our patent portfolio in the robotic milking sector announced the development deal between de Laval and Silsoe Research Institute to commercialise the robotic milking portfolio as the VMS system which has been on sale since 1997. Which leads me to my first commercialisation project.

  1. Model 1: License the technology to an established company

The primary model of technology development is that clever academics invent things, patents are filed and the institution then sells the patent portfolio to a company to a company to take it to market.

However the model of academic institutions licensing IP to third parties has serious flaws which were exposed as events later proved in the case of robotic milking.

The first flaw is that to defend a portfolio one needs to be able to maintain continuous surveillance of the field of invention. One needs to be able to comment on the patent filings made by the institution and more importantly identify infringements in the competitive filings made by others. The patent attorneys need the advice of the inventors to critically assess the key features to be protected from a wish list that might be put into the first filing. It is common practice to draft vague first filings that describe the problem to be solved and all the many ways in which it might be solved. After one year you add or edit the patent claims to focus on the novel and protectable claims, sometimes in response to the patent search by the assessors. As the project develops one or more of the key features gets developed as the solution, the problem comes if one finds a different way of solving the problem which was not mentioned in the first filing. Patenting is seen as similar in value to writing scientific papers but in practice they are completely different documents with completely different purposes. The patenting process takes several years during which the original filing will have acquired “claims” emphasising the key features and sometimes “divisionals” expanding on something from the original. The patent search needs to be commented on, occasionally the patent office find documents which they rate as having an impact on the invention, these all have to be dealt with for years. In addition, competitive filings will keep appearing to cover gaps which the prior art has missed. Without a team working on new developments it is hard to keep knowledge up to date.

The typical academic research programme lasts three to five years, even before the end of which, the team with their embedded expertise in the field start looking for other projects to engage their intellects and develop their careers. There is no guarantee of continuity of a team with the unwritten domain knowledge with which to respond to claims and counterclaims in a patent battle.

The two main competitors in robotic milking filed maybe 150 patents relevant in the field and spent a great deal of money and time before a single robot had been sold. Each one needed to be assessed and commented on but most of the Silsoe team had found other jobs encouraged by the continuing reduction in government support for agricultural engineering research.

BTG had gained a reputation for aggressively defending its IP portfolio and certainly invested heavily in paying patent attorneys to file our inventions. They used to come regularly and ask what the latest ideas were to patent. As a privatised company BTG had to take commercial decisions and in the late 1990s it decided not to sustain activity in agricultural engineering and abandoned any attempt to fight for the licence income that could have derived from the patent portfolio we had established.

Technology developments take decades to come to fruition but Research Institutions have not proved stable over long periods in the UK as they have had to adapt to constantly changing demands of the politics of managing decline from an Imperial past. The latest example being Brexit which is destroying many academic collaborations built up through European funding programs.

  1. Model 2: Open source intellectual property

Academic institutions funded by endowment or government programmes do have a certain luxury of being able to set long term objectives. Some of these are strategic for example, in keeping a capability to conduct research in a strategic area such as climate change or vaccine development. The academic model is based on combining research and teaching. Historically a learned scholar published and taught and drew a coterie of research students around him or her. Scholars banded together into colleges and began to provide intellectual support to powerful person and institutions. During the twentieth century the university became formalised and massively expanded and an emphasis was placed on publishing papers preferably in the most prestigious journals. Prestige generally goes with the pure sciences focused on theoretical studies sometimes backed by experimental data. The constant dilemma between the ability to teach and the ability to publish papers is not one to concern us here.

When I first joined the Silsoe Research Institute in 1989 my head of division pointed out to me the criteria for advancement up the pay scale was based on the numbers of papers I would publish. At the grade I was appointed to I should produce two refereed papers a year and progress to the next grade within five years. Similar criteria exist all over the academic world. The aim was quantity rather than quality as there were few measures of quality although impact factors based on readership and prestige began to creep in. Gaming the scoring system was an inevitability especially when institutional funding became related to papers written and there was even a transfer value for staff who moved between institutions. However, papers in areas where there was a potential for commercial exploitation could be embargoed until patents and other IP had been protected. Much of the work to develop robotic milking was being comprehensively patented by the BTG group and the expense did not accrue to the Institute itself.

However, after about 1997 BTG decided that agricultural innovation was not to be a major commercial benefit and later explicitly focused on the life sciences and medical research. In future, the costs of filing and protecting patents was to be the responsibility of the Institute and in this respect was to resemble academic institutions such MIT, Stanford and Cambridge and Imperial College. After the sale of the robotic milking portfolio to de Laval I had undertaken commissions for our Ministry of Agriculture to begin to identify those aspects of dairy cow health and fertility that were essential to enable robotic and highly automated systems to match the performance of good husbandry. There was no budget for filing patents and I heard it expressed that work funded by the government was for the public good wherever that was expressed. This was a continuation of a long standing British tendency to invent things and then fail to commercialise the invention. So we embarked on a policy of publishing all our work which enabled us to advance our careers and broadcast all our secrets.

It worked well until the money ran out. For example, I published my work to develop inline methods of monitoring metabolic disease and fertility parameters (Mottram, 2000) and later saw this work developed by others with a more commercial mind set. At that stage our funding model for science was being turned upside down with the reforming of the Agricultural Food Research Council as the Biological and BioScience Research Council (BBSRC). I had personally decided to focus on monitoring anaimal health and this change did lead to some useful collaborative projects with Universities. However, the change also reduced the funding for what was seen as near market research as the governing council was dominated b academics who had made their careers in fundamental research. The dirty business of making amazing scientific breakthroughs actually work in field conditions was definitely not a priority. The mindset was that of the magic bullet, genetic modification to breed better plants and animals, amazing biochemical treatments that would prevent pests and diseases. At the same time funding from the Ministry was being withdrawn from practical agriculture and replaced by levy board funding. The levy boards were generally chaired by older farmers whose mindset did not really focus of the future. In one shocking incident millions of dairy research funding was re-allocated to funding generic milk advertising. This meant that on the one hand we had funding bodies that saw success as being scientific papers and on the other by farmers who thought we had plenty of technology and just needed to use it. By 2005 it became obvious that the Research Council saw no future for agricultural engineering research in the UK and looked for ways to dispose of the assets which led to the dispersal of the institution teams to various universities. A few of us chose the alternative which was to work in industry and even to commercialise inventions that had potential markets.

A classic problem for genuine conceptual inventiveness is that it may be difficult to patent an original as it describes something that cannot yet be implemented. A classic example is the paper published in 1945 by the sci-fi author Arthur C Clarke that proposed that geostationary satellites could provide global wireless communication. This was at a time when no rockets existed capable of putting an vehicle into a low orbit let alone a geostationary position and the invention of the transistor that has made small lightweight radio systems possible was still in the future. If Clarke had been allowed to patent the idea it would have had no financial value for another fifty years until commercial launches of satellite communications began. Patents expire after twenty years.

Even when the breakthrough is visible and patented, most development programs will eat up years of the patent filing and this is particularly the case in the biosciences where any product that can be used in animals and humans may need extensive testing and validation. Most pharmaceutical products get only a short period before going out of patent. And worse still the details of the invention need to be disclosed in the patent, testing and validation so there can be no reliance on secrecy. Deciding when to apply for a patent is a critical decision that has to take into account what the competition is likely to be doing, how easy it will be to copy and how long it will take to get it to market. Getting it wrong can have consequences years and decades after the event.

One major benefit of open publishing is that it does prevent others from patenting one’s ideas although it is sometimes important to ensure that patent assessors are aware of the prior art. That is easier in the internet age but search terms can be misleading. One tactic we have used in my companies is to draft and file patent applications which is relatively low cost (£130 in the UK) and see whether the patent assessors find any prior art. The patent can then be allowed to lapse at no further cost, allowing anyone to use the idea but no one can prevent others from developing it further. Sometimes the key patent is in a feature that makes for a simpler, cheaper device. Others then have to find another way of solving the problem.

This method might be called open source intellectual property.

  1. Model 3 Institutions can create a spin-out

A fashionable idea in academic institutions is to encourage staff members with potentially commercial ideas to found companies and licence the IP generated by the academic research to the start-up or spin-out company. There are some very successful examples of this (BioVex, a University College London spin-off, was sold to Amgen, for up to US$1 billion) but also a very high failure rate.

There is a whole bureaucracy of Technology Transfer Officers (TTOs) within institutions trying to encourage and manage this process. There are also many grants and fellowships available to researchers who wish to follow this route and these often have useful training packages attached.

In the closing years of Silsoe I had been asked to develop a rumen telemetry system to monitor the efficacy of new pharmaceuticals being developed by the Pfizer company. This was technically challenging at the time but led to a viable if rather clunky system. The Institute then set up a company which we called Well Cow Ltd. The senior management took control and nominated a few shares for the founding staff.

There are a number of reasons why academic spinouts seldom succeed in attaining genuine commercial status with products on sale generating revenue.

The first problem is that TTOs and senior academic staff like to stay in control using the naivety of junior staff to accept their leadership and with the bulk of shares retained by the institution. This almost inevitably leads to a lack of speed and motivation to drive the business forward. Unless the institution has been working closely with customers for the new process or technology it is unlikely that an academic team will have the contacts and experience to develop a marketing plan quickly. It is hard to do market research unless you already have marketing experience. There is a cultural divide here too with scientists often disdaining the ways of speaking and thinking that are common in commercial circles.

As a start up moves from research to development it needs more resources and the price of money and the role of existing shareholders becomes a major consideration. A typical scaling of resource would be initial research 1, Development 10, Pre-production and launch 50. So if a supervised PhD costs £100k the next phase will cost £ 1 m and raising that much money has a price. The ideal would be to borrow the money at loan interest rates (say 5-10%) but no commercial lender would consider this unless there is collateral such as a guarantee from the institution or a founder with a property. Not many post-docs have a house worth £1m! So inevitably equity investors will be sought and they will want a massive return on their investment. Suddenly the management has to accept a dilution of the shares and manage expectations of shareholder returns. This requires the company to sell a dream rather than the reality which is that the investors are buying a gambling chip on an unknown roulette wheel which is what the market for a hitherto unknown product.

When I was first developing the idea of a biosensor to measure progesterone in milk in the 1990s. I was basing the science on the voltametric blood glucose disposal sensors. These sensors used were being produced in millions using lateral flow chemistry to convert glucose to glucose oxidase (GOD in the trade) and the release of electrons as a measurand. Our sensors used a similar lateral flow principle and voltametry and when I described the process to investors their response was often. “Could this work on blood glucose?” The reason they gave for asking this was that they could calculate a return on capital as the market for blood glucose monitoring and its growth was well known. Gaining a percentage share of that was something they could evaluate. Evaluating a market share in a market that doesn’t yet exist is impossible.

The skills needed to sell a dream whilst managing a transfer of activity from research to development is requires flexibility, speed and probably youthful naivety. Senior management of academic institutions are unlikely to have these skills and their role on the board of a start up is often to slow down progress and block opportunities.

  1. Model 4: Start-up your own development company

In 2005 as Silsoe Research Institute was closing, I was headhunted to an initiative of the Scottish Development Agency to set up a programme to develop automated condition based monitoring (CBM) for animals using wireless technologies. The initiative was called Intermediate Technology Institute with the idea being that these intermediaries with very large budgets would contract RTOs and companies to develop new technologies in strategic areas. The aim was noble and bold, to put in sufficient cash to stimulate new company formations, creating jobs in Scotland and moving away from the silicon glen screwdriver jobs which were disappearing to China. I arrived from the financially squeezed academic research sector into a world of sky high salaries and big budgets. Most of the senior staff at my division, ITITechmedia, in its glossy open plan office in the financial district of Glasgow,Scotland had been recruited from senior levels of major companies and this did not link well to the ethos of either academics or start-ups which tend to be started by people with a big vision and ambition and virtually no experience of business management. On day one I was told I had £6.2 m to spend and it must be done in 3 years. And by the way I had to spend £500k in the next 3 months. I spent the autumn of 2006 writing a massive contracting document and filed a patent on their behalf to protect the key IP of a wireless hub collar talking to multiple sensors mounted in or on the animal. At the same time I knew that this was not the real solution to the cow

Can robots save UK horticulture ?

Growing food was for thousands of years, and in much of the world still is, a set of backbreaking monotonous but skilled tasks. It was done by humans in all weathers from scorching to freezing from burning dry to continuously coal and soaked. It was largely staffed by unfree people serfs, slaves, peons, share croppers. Since people found that they could have a better life in the cities there has been a continuous migration which has driven agricultural technology for 250 years. The arrival of mobile power sources usually fossil fuelled allowed machines driven by a human to become huge and efficient in the use of labour. There was still a huge need for labour harvesting vegetables and picking fruit. The labour crisis is now so serious in UK that farms are ceasing production of some crops and even if migration restrictions are lifted the steady rise in living standards around the world means the traditional sources of labour are disappearing.

Two major advances are needed for robotic harvesting one is identifying the item you want to pick or cut and the other is to have a tool that can pick up the produce gently. Other parts of the system exist such as precision location which has been around for years and transporting and packing the fresh produce.

In this video you can see asparagus tips being picked, image processing detects the mature shoots and then a soft picker descends and holds the stem while a knife cuts it free.

Agrobot a Spanish strawberry harvester

And here you can see the types of new machines. The first observation is that this is great and complex technology and will take years to hone and improve as the test and development time is limited each season and so years may pass before all issues have been identified and fixed. Production runs are small and so the cost of producing and supporting these robots is going to be high for a while yet.