The hottest secret behind the new technology of IO

Uncover secrets: the unknown story behind the new technology of IOT management of construction machinery

the birth of any landmark product has experienced several iterations and updates. From FMCG to electronic products, these well-known brands have constantly broken the Convention and subverted themselves in appearance and core technology

although the history of mechanical commander is not long, it has actually experienced the baptism and transformation of four generations of technology. After five years of exploration and practice, the third generation products of the fourth generation technology have finally achieved the product mission of minimalist installation and universal application

when Zhihe technology operated the siege project from 2014 to 2015, many cooperative construction enterprises reported that it was difficult to manage the rented equipment. The essential reason is that construction enterprises, machine owners and drivers, as managers and managed persons, have many conflicts, disputes and games in daily management and benefit distribution, especially for central enterprises with projects all over the country. The short-term and temporary leasing relationship makes machinery management more difficult

this prompted Zhihe technology to enter the field of construction machinery management, and the mechanical commander series products came into being

from the beginning of 2015 to the beginning of 2016,

first generation technology: 4G camera

the first generation technology is also known as video and audio command module, which mainly realizes remote monitoring and communication of machinery operation on the construction site by installing cameras for machinery and equipping managers and operators with walkie talkies. Therefore, the machinery commander studied and analyzed more than a dozen different brands and types of cameras on the market, and screened the appropriate camera types according to the environmental characteristics of the construction site and the working state of construction machinery

from the initial feedback, many owners expressed great interest in video and audio management, but reality soon taught you a lesson. First of all, there are many obstacles encountered in the implementation process. The installation method of wiring power supply is troublesome and costly: it is necessary to pry open the decorative board of the machine and find the fuse box. The fuse box lines of different models are different, and there is no standard wiring method; After finding the fuse box, you need to ground, find the normal power, connect the power line, antenna and GSM antenna. After connecting the line, the fixation of the host is also a problem: if it is fixed in the cab, it is easy to be interfered by the robot. If it is fixed in the external fuselage, the product can not do the three prevention installation. In addition, the machinery is widely distributed throughout the construction site, which eventually leads to the possibility that two people can only install oneortwo devices a afternoon

just the fact that the wiring needs to touch the equipment lines is enough to make the owner and the operator full of resistance. After installation, the camera will be disconnected or online for various unknown reasons, which may be caused by high-frequency mechanical vibration, or the connection may be unstable due to the manual pulling of the line by the machine operator, not to mention that casually pasting the lens with mud can hinder the recording operation

blurred lens

more importantly, the camera is actually a pseudo demand, the value point is too weak and the cost is too high. After the novelty, managers simply have no time to stare at the video, and the viewing experience is also very poor: there is no signal in the picture, there is no delay, there is no WiFi on the construction site, and they should watch it with their own traffic

simple video is not helpful and practical for actual management. On the one hand, the lens angle is limited, the pictures that can be taken are also limited, and the local storage capacity is limited. If the view is not reached in time, the memory will cover the previous video, and data tracing cannot be realized; On the other hand, the current image processing technology has not developed to automatically identify the abnormal simple video in the video content. There is no data analysis, which is not helpful to improve the management efficiency

from the end of 2015 to the beginning of 2017

Second Generation Technology: Car couplet

the second generation technology is called DIC module, which collects data such as engine speed, oil temperature, water temperature, fuel injection volume and so on by finding the mechanical can line and cracking the CAN protocol. In one year and two months, the mechanical commander invested a huge cost in cracking technology, did many experiments, and experienced many product iterations. Finally, he chose to give up, which can be said to be the deepest pit

the main reason for this is that unlike cars, construction machinery has a unified OBD interface and a high degree of protocol openness. Its can line is very difficult to find. Different models have different lines and protocols, and even the can lines and protocols of machines launched by the same brand in different periods are different. Only professionals can find the can line; The steps to find the can line are also very cumbersome. You need to turn off the machine first, find the can line in the instrument panel, turn on the machine after finding it, keep the equipment in working state, and see whether the signal returns. If it does not return, you need to turn off again, find the line again, turn on the machine, and test it, and so on until it succeeds. It can be said that the installation difficulty and cost are higher than the first generation cameras

on the premise of finding the can line, there is also a risk of line failure when collecting signals, including short circuit or open circuit of the can line, affecting vehicle functions, hydraulic control, abnormal timing display, etc. Moreover, most construction machines use encryption protocols, and it is also very difficult to crack the protocols. Some protocols use time modulation technology, and the same data will change over time, so it is impossible to crack them at all

in addition, only the equipment using EFI engine has communication protocol, and the car coupling technology can't work for the equipment using direct injection engine at all. Before 2009, most mechanical equipment didn't reserve data ports, which means that only a small part of machinery on the construction site can collect data, and for Managers, if some machinery can't be managed, it means that the whole project is still not managed. In addition, the construction enterprises are not interested in the collected data of engine speed, water temperature and oil temperature. They only care about how much work the machinery does and how much oil it uses every day

early 2016 - June 2017

Third Generation Technology: wired sensors

in 2016, the mechanical commander began to invest huge human, material and financial resources in the research and development and testing of sensors, and finally successfully independently developed A01 in early 2017. A01 this sensor connects the battery to collect voltage and three-axis data, and then monitors the start and stop state of the machine to judge the working state of the equipment. In terms of fuel management, the fuel quantity is collected through the oil level sensor of the equipment

the problem of collecting data is solved, but the accuracy of data is another problem. A01 in terms of man hour management, we can only judge whether the machine is working or not, and we can't monitor the idle speed; In terms of fuel management, due to the limited accuracy of the sensor provided by the machine, only centimeter level sensing can be achieved, and the oil level value can only be collected as a percentage, and the specific oil volume cannot be monitored

if the insufficient data accuracy is the problem and test that will be encountered in the operation of A01 after landing, how to deploy the sensor on the construction site is the first challenge that the mechanical commander faces, because the difficulty of connecting a line is far beyond expectation

if it involves connecting power, wiring and destroying the circuit of the original vehicle, it is very difficult to land. In addition, the source of machinery and equipment on the construction site is responsible and frequently enters and exits the site, and frequent installation and disassembly is unrealistic, so professional engineers are required to stay on site

it can be installed, but I'm a new car. If the line moves, the manufacturer won't give me three guarantees. If something goes wrong, you can give me three guarantees

my car is too old. I'm worried that it's broken when I lie there. You can connect it. In the future, as long as it's broken, it's yours

I'll work for ten days and a half months, and I have to move my car, so I quit

these are the situations that wired sensors will encounter in the actual landing process. There are also many porcelain bumping accidents encountered by A01. The excavator battery equipped with sensors was stolen, and the machine owner will attribute it to the installation of A01, because the screw was unscrewed when wiring, which made the screw that was originally very difficult to screw open better, which is equivalent to indirectly saving the thief effort. In addition, the multi-channel valve of some excavators broke down, and the machine owner also corrupted the construction site by more than 10000. It was obviously the problem of the hydraulic system, which had nothing to do with the wiring and power connection, but he threatened not to let you install it. You had to install it, and the construction site was dumbfounded

practice has proved that it is more difficult to connect a wire at the construction site than expected. Cutting off the wire of the sensor is not a design made by patting the forehead, but a decision made from sales and market

from April 2017 to now

Fourth Generation Technology: wireless sensors

first generation products: z01.0

from April 2017 to mid-2018, after the exploration of three generations of technology, the mechanical commander deeply felt the importance of the landing and implementation of regulatory products on the site, and was determined to cut off the wires of sensors, and the products must be minimalist installation and universal application. Z01.0 is the first wireless sensor independently developed by the mechanical commander, and it is also the predecessor of the intelligent terminal z03.0

z01.0 is equipped with solar panel + lithium battery for power storage, and the operation status of construction machinery is collected and analyzed by six axis sensor. However, z01.0 has low charging efficiency and high power consumption. It can only work for about 10 days when fully charged at one time. This problem is amplified in winter. But in general, the research and development of z01.0 is a successful exploration. Zhuyu smoothed the structural design and power consumption design of hardware in the early and late stages

it is worth mentioning that in 2019, the mechanical commander carried out remote upgrade and optimization of z01.0, significantly reducing power consumption and improving data reliability

second generation products: z02.0

z02.0 is mainly based on the structural adjustment of z01.0, and the glue filling process is used for waterproofing. Although the waterproof problem is solved, there are difficulties in after-sales maintenance, so the whole is only in the mold opening stage, and there is no mass production and application

third generation products: z03.0, z04.0, sp1.0, z05.0, sa1.0, sf1.0

mass production in October 2018 - so far

after finding the product positioning of minimalist installation and universal application, after the exploration and practice of the first two generations of products and technologies, and with the addition of talents and the continuous development and expansion of the team, the algorithm and software levels also cooperate, The engineering machinery management solutions provided by the machinery commander are becoming more and more mature from the software to the hardware level

first, the previous pit is filled on the basis of z01.0 and z02.0. On the other hand, the design of z03.0 has reached the best state in all aspects: the shell material is modified ABS + glass fiber +uv weather resistant material, which is resistant to high and low temperatures; Wave type card slot design, dual-purpose cooling and drainage, making the terminal more breathable, heat dissipation in summer and drainage in rainy and snowy days; The low-power design keeps the power consumption below 120mAh every day, and it can work continuously for three months in rainy weather without sun; With the addition of Bluetooth module, you can freely expand all kinds of sensors

another big move of mechanical commander in 2019 is the wireless oil level monitor sp1.0. In October, 2018, the mechanical commander focused on the smart fuel tank cap project. After nearly a year of research and development and selection, he finally successfully built a pressure sensor with a built-in ring battery, and the accuracy of fuel volume measurement reached 0.5%. The real-time fuel volume curve allows customers to know the refueling volume and fuel consumption per minute. In the whole industry, the launch of wireless oil level monitor sp1.0 is of revolutionary significance to improve the efficiency of fuel regulation, and also provides suitable fuel for construction enterprises to fine manage different detection projects