【China Road Machinery Network Original report】Unmanned and intelligent road construction is an important direction of the development of road construction machinery。The development experience of western developed countries such as Europe and the United States shows that，After industrialization is deepened to a certain extent,，The growth of industrial economy will largely depend on the improvement of industrial equipment level.，Therefore, the intellectualization of construction machinery group、Systematize、Unmanned will be an important trend in the future development of construction machinery。
Wuhan Yingtu Engineering Intelligent Equipment Co., Ltd.（Hereinafter referred to as Wuhan Yingtu）By exploring the road construction driverless，The remote control system of Paver and roller is developed for the pain point of the industry.、Unmanned system、Unmanned assistant function、A series of technological changes such as automatic driving system，Keep the operator away from high temperature、Asphalt fume pollution，The poor pavement construction environment is effectively solved.、Shortage of operators and other problems，The construction efficiency has been greatly improved.，And that construction cost is greatly reduce.，Reduce the cost by 60 percent%Above，It has been praised and welcomed by the vast number of users.，Boosting road construction into intellectualization、The unmanned era。
The unmanned Road Roller group developed by Wuhan Yingtu is in operation.
Construction profits have fallen sharply.，Small and medium-sized enterprises are facing tremendous pressure to survive.
As China's population gradually enters an aging society,，Labor shortage has become a common phenomenon.，Rising labor costs in China，High labor cost has become one of the biggest pain points faced by construction enterprises.。According to industry sources，On the one hand，Labor costs are getting higher and higher；On the other hand，Construction profits are getting lower and lower.。Can't afford to support people.、Many construction bosses are facing a dilemma or even a difficult situation when they can't afford to hire people but have to hire people with high salaries.。Take raising small digs as an example.，A 6-ton small Excavator works 1500 hours a year.，The gross income is about 150000 yuan.，Excluding the driver's salary of 80000 yuan，The remaining 70000 yuan is the boss's income.。The cost of equipment maintenance has not been deducted.，If the bill is not collected smoothly, even this money is not guaranteed.。So，The boss made fun of it：“We are doing the heart of the white powder.，Take the income from selling cabbages.。”The sadness and helplessness are moving.。In addition to high labor wages.，Operators, especially experienced operators, are difficult to find, which has become a headache for many bosses.。Especially when the industry is booming in 2017-2019，The operator is hard to find、The high turnover rate has become the top concern of most bosses.。This year, the industry is depressed.，The contradiction between supply and demand of operators has been alleviated.，However, due to the downturn in the industry,，A large number of bosses and operators have changed careers.，Once the industry recovers，The shortage of operators is bound to happen again.。
Under heavy pressure，Many bosses have had to change the way they do business.：It used to be a device with an operator.，Now there are two devices or three devices with one operator.。Some bosses want to relieve the pressure.，Simply sell most of the equipment.，Leave only a small amount of equipment to open by yourself.，Or leave only a small number of operators to maintain normal operation.……
When the traditional industry develops to a certain extent,，It is bound to be replaced by a new mode of production.。So，How to solve this problem?？This is also the original intention of Wuhan Yingtu Engineering Intelligent Equipment Co., Ltd.。In the words of General Manager Ye Shengjin,“Mechanization of construction、The Road to Mechanical Intelligence”。
Upgrading is urgently needed，Six Pain Points Perplex Pavement Construction Users
If you want to be rich，Build the road first。Pavement construction is the last link of road construction.，It is also the most important link.。The current asphalt pavement construction needs the participation of many kinds of machines.，The drawbacks are obvious.：①High energy consumption，Low productivity。Asphalt is a non-renewable energy resource.，There is great pollution in the production process.。An asphalt Paver is often equipped with two operators and more than a dozen on-site construction personnel.，It requires a lot of labor costs and material costs.。②The labor intensity is high，High construction risk of maintenance personnel。Ten years ago，The intelligence level of most Pavers is low，Mainly by manual operation，Maintenance personnel braved the high temperature to operate on the ground，The risk is high。③An open cab commonly used with pavers.，No air conditioning，Operators need to brave the heat.、High noise、The vibration force is large、Operation in harsh environment such as heavy asphalt and oil fume。④Rising labor costs，The poor working environment of equipment operators leads to high wages and difficult recruitment.，Many factors such as low price and malicious competition among peers，The price of the project has been repeatedly depressed.，Profit margins are getting smaller and smaller.，Payment collection is difficult，It makes most construction enterprises difficult.。⑤Construction machinery and equipment construction involution led to a sharp decline in industry profits.，Many enterprises are suffering from serious losses.。⑥The global epidemic has not been fundamentally controlled.，Multi-point outbreaks of the epidemic make people impossible to guard against.，It is easy to lockdown in many places.，There is no operator，The construction site can not be constructed.。
To this day，The driverless technology of Vehicles around the world has become increasingly perfect.。Unmanned driving technology uses multi-sensor fusion sensing technology.、Intelligent Decision Control Technology、Signal processing technology, etc.，By integrating vision、Laser radar、Millimeter wave radar、High precision map、gnssAnd so on to identify the environment and state of the Vehicle.，And comparing the obtained road information and the road information,、Vehicle position and obstacle information are analyzed.，Control vehicle driving，Thus realizing unmanned driving.。The research in this field lays a foundation for the unmanned development of hot in-place recycling construction equipment.，It also provides a direction for unmanned road construction.。
Anchoring unmanned driving，Wuhan Yingtu shoulders the heavy burden bravely
In recent years，Some domestic enterprises began to study the construction of driverless roads.，Many of them have made great achievements in road intelligent construction.，Wuhan Yingtu is one of the outstanding representatives.。
After graduating from high school, Ye Shengjin joined Wuhan Municipal Group.，In 2007, he founded Wuhan Huixiangsheng Municipal Co., Ltd.，With excellent technology and management，Developed to have 4 pavers、More than 10 Road Rollers，And Asphalt Distributor Truck、Truck-mounted crane and other asphalt road construction equipment。Since 2010，A large number of individual households are pouring into the field of asphalt road construction.，As a result, competition in the industry is becoming more and more fierce.，The price of the project has been repeatedly depressed.，Payback is becoming more and more difficult.。Under the background of increasingly stringent environmental protection，The amount of work has also been compressed.，Involution leads to a sharp decline in industry profits，Many enterprises are suffering from serious losses.。
As an old municipal worker with more than 40 years of rich construction experience,，Ye Shengjin is very clear about the pain points and difficulties of pavement construction.。In his opinion，Unmanned construction is a way to alleviate the current predicament.。2017，Ye Shengjin established Wuhan Yingtu Engineering Intelligent Equipment Co., Ltd.，He devoted most of his energy to the development and application of driverless and intelligent driving.。
Product development，Positioning is the key。Early stage of development，He set two standards.：Intelligent products must conform to the usage habits of most users.，It can really help users reduce costs.，And that construction efficiency is improve；So that most people can afford it.、I can afford it。
The unmanned paver developed by Wuhan Yingtu is working.
According to road construction pain point，Wuhan Yingtu has developed road construction machinery, paver and roller.Remote control system→Unmanned system→Unmanned assistant function→Multi-machine cooperative scheduling system。
The unmanned aircraft group is supported by four key technologies.：Paver remote control+Video surveillance system;Remote control of Road Roller+Automatic drive cluster construction system;Collision Avoidance System and Group Control Safety Technology;Automatic driving and automatic identification of construction environment、Automatically plan the path、Automatically avoid obstacles。And that high intellectualization of the pavement construction is realize.、Unmanned，It opens a new chapter of unmanned maintenance and construction of expressway.。
Single machine remote control driving technology，Add additional controller and vehicle body in the power distribution cabinet of the remote control pavercanControl equipment such as bus or docking solenoid valve output, etc.、Functions of steering and body parts。The operation panel and the vehicle are under the same network.，ThroughMESHNetworking connection，The main control system is installed on the paver.，Butt the original control platform of the paver，Data acquisition and operation control of paver are realized.。For ease of installation，And combine with signal transmission characteristic，The main control system will be divided into two parts.：1、Host in power distribution cabinet；2、Operating panel installed in the operator's station
Multi-aircraft cooperative control unmanned driving system，Using multi-line laser radar、IMU And RTKPositioning, navigation and other sensor data fusion positioning， Achieve 2 cm positioning accuracy；Can be applied to municipal road、Continuous positioning operation of highway。The front and rear of the road roller are equipped with multi-line laser radar rotating 360 degrees.，All-round risk assessment and anti-collision of operation scenarios can be realized，Minimum fender height 0.2m，The farthest sense is greater than 50m。
Multi-unit cooperative dispatching technologyInformation Fusion for Cooperative Control、A large number of data brought by advanced technologies such as sensor measurement are effectively analyzed.，And make reasonable decisions and task allocation.。Standardized control scheme is adopted in the whole construction process.，The rear vehicle can follow the front vehicle as required，So that that rear vehicle can perfectly carry out the repeat compaction of the road and make up for the pressure leakage of the road surface，Keep the consistency and integrity of the whole unit。
Unmanned assistant function，The four network cameras of the monitoring system are respectively installed at the four corners of the paver and the roller.，Operator（Alone）When controlling the operation of the paver or roller with the flat remote controller，The situation around the paver or roller can be observed through the monitoring picture displayed on the plate.。Through the third party software platform docking.，Pass the real-time monitoring video data of each paver and rollerMESHAd-hoc network communication transmission to flat panel remote controller，The remote management system accesses the people who can realize the production process of the specific scene.、Machine、Material、Law、Comprehensive perception of ring and other data，Obtain various business data；Access to vehicle data，Get miles、Fuel consumption、Fault code and other relevant data information，It can realize the detection of vehicle fault code and other status information.。
Autopilot system，Additional installation at the periphery of the paver vehicles：Fish eye camera mount in front of vehicles、Level sensor、meshAd hoc network、GNSSAntenna、RTKPositioning and navigation controller and other equipment collect positioning and environmental sense data。On the deviceBDS/GPSThe mobile station of that differential receive receives the pseudo-range differential correction data transmit by the reference station through the wireless network，And transmit that high-precision positioning data to the schedule server of the mobile monitoring center for generate a map；At the same time, the surveillance camera on the paver passes through.MESHAd hoc network sending video data；The autopilot controller is connected.MESHThe ad hoc network receives the control instruction of the remote controller、Scheduling data of the collaborative job scheduling server；At the same time, the surveillance camera on the roller passes through.MESHAd hoc network sending video data。The road roller generates an operation road network according to the construction edge of the paver，The planning scheme can adapt to the complex road edge shape.。Roller vehicle end-Dispatch system-Cloud platform-side real-time data interaction，Realize the connection of automatic driving tasks from interaction to application。
Three aspects of quality improvement have been achieved through precise control.：First, the minimum distance between the rollers is reduced to 2 meters.；The second is to rationally plan the path，Eliminate parking strips；Third, rolling to the side is reduced to 2 cm.。Pave at a uniform speed，No pressure leakage、But pressure、No speeding，Continuous and uninterrupted operation，Automation is achieved、Standardization、Unmanned，Better construction uniformity、More efficient construction。Fully responding to the public's concerns about road construction“High efficiency、High quality、High environmental protection、High security、Zero accidents”Expectations。
According to the above summary of the current situation and key technologies of unmanned construction machinery at home and abroad，Combined with the overall impact of the current wave of unmanned on industrial development，It's not hard to find out，Unmanned road construction has many values worthy of development and further deepening.。With the development of science and technology，Intelligent、Mechanization will gradually become the mainstream trend of the development of construction machinery.。In the future, construction machinery will transit from partial automation to comprehensive intelligence.，And the trend towards unmanned and remote control.。
Unmanned road construction technology has great industrial value and benefits.，Wuhan Yingtu Passes the Research and Development of Unmanned Construction Technology of Asphalt Pavement，From the current labor-intensive、Experiential mode of operation becomes technology-intensive industry，It will lead the development trend of the new generation of road intelligent equipment.。Unmanned thinking in road construction is bound to play a greater role in the transformation of the engineering field，Leading China's highway construction to usher in a new technological revolution。
