TWI497461B - Dispatching system and method for vehicle having hydraulic-lift platform or rotatable bucket - Google Patents

Description

Dispatching system and scheduling method for vehicle with hydraulic lifting platform or rotating rear bucket

The invention relates to a dispatching system and a dispatching method for a vehicle with a hydraulic lifting platform or a rotatable rear bucket, in particular to a vehicle dispatching system and a dispatching method applied to a vehicle equipped with a hydraulic sensing device.

In the current more advanced vehicle dispatching system, the position of the vehicle is often detected according to the global positioning system loaded on the vehicle, and then the vehicle position is transmitted back to the driving control center through the communication system, and the driving control center returns the information according to each vehicle. Carry out vehicle dispatch tasks, especially for business vehicles, including gravel vehicles, towing vehicles, various trucks and taxis.

The dispatching monitoring system disclosed in the Chinese Patent Publication No. 200538750 is directed to a taxi with wireless communication and vehicle positioning technology, wherein the flow chart of the prior art vehicle dispatch is shown in the first figure. The vehicle of the system needs to have the communication equipment of GSM/GPRS, 3G, etc., the Global Positioning System (GPS), and achieve the purpose of communication and dispatching tasks through the base stations installed in various places, including taxi call, reservation scheduling, vehicle identification, and car search. , matching, monitoring and other purposes.

In this example, each vehicle 102 is located through a global positioning system and returns location data (121), particularly in conjunction with geographic location analysis of electronic map 123. In this case, the average vehicle speed (124) of each road traffic is calculated by the location data and the geographical location analysis (122), and the traffic information of the traffic road is established, and the traffic management unit is provided in the instant traffic information database 125. The query is more likely to generate traffic congestion areas and alternative road suggestions through analysis, and is distributed to other vehicles 102 via the publishing platform 127.

In addition, for the vehicles in the back bucket, in the process of transporting the goods, the owner often uses various anti-blocking methods to prevent the driver from improperly loading and unloading in the process, and the conventional technology also utilizes the global positioning system. In order to track the driving route, or a specific technology will use the detection device to detect the joystick to determine whether there is a dumping action, and then match the position of the vehicle to determine whether there is any improper behavior.

In the prior art, the global positioning system and the sensor switch for detecting dumping behavior can enable the remote control center to receive and record the driving operation behavior, thereby determining whether the driving is unloaded at an unapproved location. the behavior of.

In view of the vehicle dispatching system disclosed by the prior art, and particularly for the equipment for monitoring the loading and unloading of trucks, the present invention particularly proposes a dispatching system and a dispatching method for a vehicle having a hydraulic lifting platform or a rotatable rear bucket, mainly using a loading A hydraulic sensing device on a vehicle having a hydraulic lifting platform or a rotatable rear bucket, wherein the circuit has positioning, communication and hydraulic sensing, and accordingly, in addition to sensing the loading and unloading behavior of the vehicle, the positioning system and the communication function are better. The vehicle loading and unloading status, location, and driving status are communicated to the dispatch control center as the basis for such vehicle scheduling, resulting in more effective scheduling and anti-blocking behavior.

The above-mentioned vehicle with a hydraulic lifting platform or a rotatable rear bucket is a vehicle having a loading and unloading cargo platform or a vehicle body, such as a ready-mixed concrete truck, a gravel truck, a truck, etc., through a hydraulic sensing device mounted on the hydraulic pipe, Effective monitoring of the position and loading and unloading behavior of vehicles with hydraulic lifting platforms or rotating back buckets.

According to an embodiment of the invention, the proposed vehicle dispatch system is applied to a vehicle having a hydraulic lifting platform or a rotatable rear bucket, the system comprising a dispatch control center and at least one vehicle having a hydraulic lifting platform or a rotatable rear bucket. The dispatch control center has a row of vehicle movement control system for displaying the electronic map and establishing the traffic control table. A hydraulic sensing device is provided on the hydraulic pipe on such a vehicle.

In particular, the hydraulic sensing device includes a micro processing unit electrically connected to the hydraulic sensing unit, the positioning unit and the communication unit of the micro processing unit, wherein the hydraulic sensing unit senses a hydraulic change when the vehicle operates, and A hydraulic status signal is generated, and the positioning unit receives the global positioning signal to generate a position signal. Finally, the communication unit transmits the hydraulic status signal and the position signal to the dispatch control center via a mobile communication protocol.

According to the embodiment, a time stamp will be recorded in the position signal, and the position and time cooperate to describe the driving trajectory of the vehicle on the electronic map. Combined with the information of the lifting or lowering of the hydraulic lifting platform, or the information of the rotating direction and the rotating speed of the rotating bucket, efficient vehicle scheduling can be generated according to parameters such as the operating state, position and time of the vehicle.

A vehicle scheduling method can be implemented by applying the above-described hydraulic sensing device mounted on a vehicle having a hydraulic lifting platform or a rotatable rear bucket.

Since the controlled vehicle is equipped with the hydraulic sensing device, the sensing circuit of the hydraulic sensing unit senses the hydraulic change of the vehicle during operation to generate a hydraulic status signal; wherein the positioning unit receives a satellite positioning signal to generate a position Signal. Then, the hydraulic status signal and the position signal are transmitted to the dispatch control center through the communication circuit.

According to the information recorded by the hydraulic status signal and the position signal, at least one or more vehicle identification information, vehicle coordinates, loading and unloading status and time are obtained, so that a row of vehicle management and control tables is recorded, and each vehicle position and driving trajectory can be displayed. An electronic map. Thereby, a scheduling program is executed according to the information of the traffic control table and the electronic map.

The dispatching system and the dispatching method of the vehicle with the hydraulic lifting platform or the rotatable rear bucket proposed by the invention are characterized in that the hydraulic sensing device mounted on the vehicle detects the operating state of the vehicle during the attendance, and the operating state can be Through the communication circuit, the wireless communication means is transmitted to the remote dispatching control center. The vehicle can also use the Global Positioning System (GPS) in the device to determine the location of the vehicle, and then transmit the message to the dispatch control center. The map information can be converted on the map to know the working status of the vehicle (loading and unloading). , location, route), according to the state of each vehicle, to make better scheduling.

The dispatching system and method proposed by the present invention are mainly applied to a truck having a hydraulic lifting platform, a ready-mixed concrete truck having a rotatable rear bucket, or other vehicles using a hydraulic device to perform loading and unloading work. Since the hydraulic sensing device can detect the operating state of the vehicle through hydraulic changes, and cooperate with the position information of the global positioning system, it can be determined whether the vehicle is improperly loaded and unloaded at an inappropriate position, thereby preventing theft.

By integrating information on vehicle operating conditions, driving position and trajectory, time, etc., the present invention will provide optimized vehicle scheduling, including even controlling the expiration date of the materials in a particular vehicle, and the supply and supply side conditions.

Please refer to the schematic diagram of the ready-mixed concrete truck with the hydraulic sensing device of the present invention shown in the second figure.

According to one of the embodiments, the hydraulic sensing device can be applied to a ready-mixed concrete vehicle for detecting the operating state of the hydraulic device in which the back bucket can be rotated, and simultaneously receiving the global positioning signal to generate a position signal, which can accurately understand the pre-preparation. Loading and unloading behavior and location of concrete trucks. The figure shows a ready-mixed concrete car 20 having a rotatable rear bucket, the rotatable rear bucket being shown as a rotary agitating cylinder 22, driving the rotational direction and speed of the rotary agitating cylinder 22 through a hydraulic device, and the hydraulic pressure of the present invention The sensing device 24 is mounted to the hydraulic tube therein, and in particular can be disposed within a hydraulic valve (not shown).

When the rotary agitating cylinder 22 is driven by the hydraulic device, the pressure of the liquid in the hydraulic pipe changes, and the hydraulic pressure changes the circuit, and the hydraulic sensing device 24 senses the hydraulic pressure change to generate a hydraulic state signal. The hydraulic status signal will reflect that the ready-mixed concrete car 20 is loaded with cement, or unloaded with cement, or pre-grounded during travel, and other states may include the direction of rotation and rotational speed of the rotary agitating cylinder 22.

Moreover, the hydraulic sensing device 24 can generate a position signal generated by the positioning unit, and the communication unit of the hydraulic sensing device 24 periodically transmits the hydraulic state signal and the position signal to the dispatch control center by a wireless communication means.

The third figure shows another embodiment of the present invention. The hydraulic sensing device is mounted on a vehicle with a hydraulic lifting platform, wherein a vehicle 30 with a hydraulic lifting platform is displayed, a dumping bucket 32 is behind, and a hydraulic sensing device 34 is provided. It is installed on the hydraulic device, especially the hydraulic sensing device on the hydraulic pipe (such as oil pressure) that controls the rise and fall of the car when dumping the cargo.

The hydraulic sensing device 34 will transmit a signal according to the hydraulic state and transmit it to the dispatch control center through a wireless communication protocol (such as a mobile communication protocol such as 3G/3.5G/GPRS) to determine the operating state of the vehicle.

The hydraulic sensing device 34 has a sensing circuit for sensing the change of the hydraulic pressure. The hydraulic pressure change in the hydraulic pipe will touch the circuit of the sensing circuit, and the hydraulic sensing device 34 will send a hydraulic state signal according to the hydraulic state, wherein the lifting platform is recorded. The action of rising and falling, especially the position signal generated by the positioning unit receiving the global positioning signal, the dispatching control center can accurately know the behavior of the loading and unloading of the vehicle with the hydraulic lifting platform and its position and time, which may include hydraulic pressure. The angle of inclination of the upper and lower sides of the vehicle after the device is driven.

The circuit inside the above-described hydraulic sensing device can be referred to the fourth figure to show a circuit block diagram of an embodiment of the hydraulic sensing device of the present invention.

The figure shows an internal function block of the hydraulic sensing device 4, which mainly includes a micro processing unit 41, a communication unit 42, a positioning unit 43, and a hydraulic sensing unit 44 that are electrically connected to each other, and additionally includes a required connection of the hydraulic sensing device 4. Power supply 55.

The hydraulic sensing device 4 is particularly applied to a vehicle having a hydraulic lifting platform or a rotatable rear bucket, wherein the microprocessor unit 41 is configured to process data processing between various circuit components within the hydraulic sensing device 4.

The hydraulic sensing unit 44 is electrically connected to the micro processing unit 41, and includes an induction circuit connected to the hydraulic pipe, and the induction circuit can generate a hydraulic state signal according to the hydraulic pressure change in the hydraulic pipe. According to the embodiment described in this figure, the hydraulic sensing unit 44 is connected to the sensing circuit of the hydraulic valve 46 mounted on the hydraulic pipe 401 to sense the pressure change, wherein the hydraulic state signal records different messages according to different vehicles: for hydraulic lifting The vehicle of the platform, the hydraulic pipe 401 is a pipe for pushing the pressure device of the vehicle behind the vehicle, and the hydraulic state signal may include the lifting or lowering action of the hydraulic lifting platform; for the ready-mixed concrete car with the rotatable rear bucket, the hydraulic pressure The tube 401 is a line for driving a pressure device of a rotary agitating cylinder of a vehicle, and the hydraulic state signal indicates a rotation direction of the rotatable bucket, a rotation speed, a loading and unloading of the vehicle, or a state of pre-stirring between the traveling.

The positioning unit 43 of the hydraulic sensing device 4 is electrically connected to the micro processing unit 41. The preferred embodiment of the positioning unit 43 can include a global positioning system circuit and an antenna for receiving satellite positioning signals from the satellite 403, and then processing the data. After the unit 41 performs signal conversion, a position signal is generated.

The communication unit 42 is electrically connected to the micro processing unit 41. Structurally, the communication unit 42 mainly includes a mobile communication circuit and a communication antenna, and can transmit the above through a mobile communication protocol such as 3G, 3.5G, GPRS, or other wireless communication protocol. The hydraulic status signal and position signal can be transmitted to the control center (not shown) through the communication base station 405. The control center can interpret the signal to obtain the information recorded therein; or the communication unit 42 can firstly The signal is compiled into a message that can be understood, and the hydraulic status signal and position signal are transmitted to the control center in the form of a short message or other communication means.

The hydraulic sensing device 4 is mainly coupled to a hydraulic pipe in a vehicle, and is connected to a hydraulic valve to sense a change in hydraulic pressure therein. In addition to being an external circuit, it may be a circuit device embedded in the hydraulic valve.

The above-mentioned hydraulic sensing device, the dispatching system of the vehicle with hydraulic lifting platform or rotating back bucket (such as ready-mixed concrete truck, gravel truck, truck, etc.) is mainly based on the hydraulic state signal and position generated by the hydraulic sensing device. The signal derives information on the loading and unloading behavior, location, and driving conditions of the vehicle, and performs the scheduling of such vehicles.

According to the embodiment shown in the fifth figure, the dispatching system is mainly composed of the dispatch control center 50 and at least one vehicle having a hydraulic lifting platform or a rotatable rear bucket (indicated by the first vehicle V1 and the second vehicle V2 in the figure). The dispatch control center 50 is configured to receive signals transmitted by the vehicles and transmit scheduling commands. There is a row of vehicle movement control system 52, which is a data processing computer system, which can mainly analyze the received information, and display the vehicle position and the driving track on an electronic map, for example, according to the position signal transmitted by the first vehicle V1. The time traces the trajectory on the electronic map, such as the trajectory of the first vehicle position V1' and its broken line, and the second vehicle position V2' corresponding to the second vehicle V2.

The driving movement control system 52 then establishes a row of vehicle management and control tables according to the results of the analysis data, such as the time, vehicle position, vehicle status, destination, distance to destination time, distance from the destination, Loading and unloading status and traffic status obtained from external information. The dispatch control center 50 can simultaneously control more than one vehicle, and the first vehicle V1 and the second vehicle V2 are displayed on the way.

The first vehicle V1 has a first hydraulic sensing device 55, wherein the positioning unit (refer to the fourth figure) receives the global positioning signal of the satellite 54 and performs data conversion via the micro processing unit in the first hydraulic sensing device 55. The position signal is sent by the communication unit and transmitted to the driving movement control system 52 via the communication base station 53. The first hydraulic sensing device 55 detects the operating state of the rear bucket of the first vehicle V1 through the hydraulic sensing unit. In the general rotation state, during the loading and unloading process, there may be a change of the rotation direction and the rotation speed. These operating states will drive the hydraulic pressure change in the hydraulic pipe, thereby triggering the circuit in the hydraulic sensing unit, and the hydraulic state is converted by the micro processing unit. Signal. It is also transmitted to the vehicle movement control system 52 via the communication unit.

A second hydraulic sensing device 56 is mounted on the second vehicle V2. The hydraulic pressure sensing unit senses the hydraulic pressure change to generate a hydraulic state signal. The positioning unit obtains the positioning information to generate the position signal. The hydraulic status signal and the position signal are transmitted to the dispatch control center 50 through the communication unit timing.

The driving movement control system 52 will draw the position of the vehicle according to the information from the first vehicle V1 and the second vehicle V2, such as the first vehicle position V1' and the second vehicle position V2', and depict the driving according to the position signal obtained at the timing. Track. Relevant information will be recorded in the traffic control table.

In particular, since the signals generated between the vehicles must be periodically transmitted to the dispatch control center 50, the preferred embodiment is transmitted via a mobile communication protocol, such as GPRS, 3G, 3.5G, WiMax or the like, which has a high speed motion. Various mobile communication means for smoothly transmitting signals, for example, the related information is transmitted by means of network packet, or the hydraulic status signal and the position signal can be transmitted in the form of a Simple Message Service. Since each signal is an instant message, which has a time stamp, the vehicle's driving trajectory can be drawn on the electronic map. Relevant information, such as time, location, information on the rise or fall of the hydraulic lifting platform, the direction of rotation and the rotational speed of the rotatable bucket, will be recorded in the traffic control table, and other vehicle states may have waiting, feeding, and moving. , unloading, idling, disconnection, etc.

A vehicle dispatching method can be implemented by applying the above-described hydraulic sensing device mounted on a vehicle having a hydraulic lifting platform or a rotatable rear bucket. Please refer to the vehicle of the present invention with a hydraulic lifting platform or a rotatable rear bucket as shown in the sixth figure. One of the scheduling method flows.

In step S601, the hydraulic pressure change in the hydraulic pipe of the vehicle is sensed through the sensing circuit in the hydraulic sensing device. After the conversion, in step S603, a hydraulic state signal is generated, thereby reflecting the operating state of the vehicle. Then, in step S605, the satellite positioning signal is received by the positioning unit, and the position signal is generated by conversion (step S607).

Since the controlled vehicle is equipped with the hydraulic sensing device, the sensing circuit of the hydraulic sensing unit can sense the hydraulic change during the operation of the vehicle, and the satellite positioning signal received through the positioning unit, after being processed, the hydraulic pressure is applied. The message such as the status signal and the position signal is transmitted to the dispatch control center via the communication circuit (step S609).

The dispatch control center receives the hydraulic status signal and the position signal (step S611), and can interpret each signal into meaningful information through the interpretation process. For example, in step S613, the vehicle identification information, the vehicle coordinates, the loading and unloading status, and the time are obtained. And other information.

This information can be stored in the database for future reference. In step S615, the above information is displayed on the electronic map, including identification information of each vehicle, each vehicle position, driving trajectory, and the like, and the loading and unloading state and time are combined to establish a driving control table.

In step S617, according to the information on the traffic control table and the electronic map, a scheduling procedure is executed, and the scheduling can be accurately performed, including transmitting the scheduling instruction through the communication protocol, or communicating with the driving by radio, matching the destination, the quantity of the cargo, and other vehicles. The immediate state, distance, and even the immediate traffic status, the scheduling is performed manually or automatically.

Since the hydraulic sensing device mounted on a vehicle with a hydraulic lifting platform or a vehicle having a rotatable rear bucket has the capability of receiving satellite positioning signals and transmitting signals through the mobile communication module, in addition to the function of vehicle scheduling, And has the effect of vehicle preservation.

The seventh figure next describes the second flow of the scheduling method of the present invention.

After the dispatch control center receives the hydraulic status signal and the position signal sent by the hydraulic sensing device on one or more vehicles (step S701), the information contained in the relevant signal may need to be interpreted as a picture or other information. Or the information contained therein is understandable information, such as coordinate values, status codes, etc., whereby the dispatch control center can obtain information such as vehicle identification information, vehicle coordinates, loading and unloading status, time, and the like (step S703).

Next, an electronic map is introduced. In step S705, the location information is converted into map information, and the driving trajectory is drawn in accordance with the time. Further, as described in step S707, the traffic movement control system of the dispatch control center draws each vehicle position on the electronic map based on the above information, and establishes a traffic control table to record the loading and unloading status.

According to another embodiment, the dispatch control center may introduce the instantaneous traffic information from the outside, as in step S709, as one of the basis parameters of the vehicle dispatch.

During the scheduling process, the system will introduce a demand (step S711), such as the time, destination, quantity of goods, etc., according to which scheduling information is generated (step S713), and the relevant scheduling signal is transmitted to each receiving scheduled vehicle (step S715).

In summary, the present invention provides a vehicle dispatching system and method, which is mainly applied to a vehicle having a hydraulic lifting platform or a rotatable rear bucket, particularly using a hydraulic sensing device mounted on each vehicle, through which hydraulic sensing, Satellite positioning, signal transmission and other functions, to achieve the purpose of scheduling related to the hydraulic lifting platform or the rotating rear bucket.

However, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Therefore, equivalent structural changes that are made by using the specification and the contents of the present invention are equally included in the present invention. Within the scope, it is combined with Chen Ming.

102. . . vehicle

121. . . Location data

123. . . digital map

127. . . Publishing platform

122. . . Location data and location analysis

124. . . Average speed of road traffic

125. . . Instant traffic message database

126. . . Traffic management unit

127. . . Publishing platform

20. . . Ready mixed concrete truck

twenty two. . . Rotary mixing cylinder

twenty four. . . Hydraulic sensing device

34. . . Hydraulic sensing device

30. . . Vehicle with hydraulic lifting platform

32. . . Body

43. . . Positioning unit

44. . . Hydraulic sensing unit

42. . . Communication unit

41. . . Micro processing unit

45. . . power supply

405. . . Communication base station

403. . . satellite

401. . . Hydraulic pipe

46. . . Hydraulic valve

4. . . Hydraulic sensing device

50. . . Dispatching control center

52. . . Driving movement control system

53. . . Communication base station

54. . . satellite

55. . . First hydraulic sensing device

56. . . Second hydraulic sensing device

V1. . . First car

V2. . . Second car

V1’. . . First car position

V2’. . . Second car position

Step S601~S617 One of the processes of the vehicle scheduling method

Step S701~S715 Vehicle Dispatching Method Process 2

The first figure shows a flow chart for a conventional technical vehicle dispatch;

The second figure shows a schematic view of a ready-mixed concrete vehicle in which the hydraulic sensing device of the present invention is installed;

The third figure shows a schematic view of a vehicle with a hydraulic lifting platform installed with the hydraulic sensing device of the present invention;

The fourth figure shows a circuit block diagram of an embodiment of the hydraulic sensing device of the present invention;

The fifth figure shows a schematic diagram of the vehicle dispatching system of the present invention;

The sixth figure shows one of the flow chart of the method for dispatching a vehicle with a hydraulic lifting platform or a rotatable rear bucket;

The seventh figure shows the second flow of the scheduling method of the vehicle with the hydraulic lifting platform or the rotating rear bucket.

50‧‧‧ Dispatch Control Center

52‧‧‧Traffic shift control system

53‧‧‧Communication base station

54‧‧‧ satellite

55‧‧‧First hydraulic sensing device

56‧‧‧Second hydraulic sensing device

V1‧‧‧ first car

V2‧‧‧ second car

V1’‧‧‧ first car position

V2’‧‧‧Second car position

Claims (10)

A vehicle dispatching system is applied to a vehicle having a hydraulic lifting platform or a rotatable rear bucket. The dispatching system comprises: a dispatching control center having a driving shift control function, displaying an electronic map and establishing a row of vehicle management and control tables; And at least one vehicle having a hydraulic lifting platform or a rotatable rear bucket, wherein a hydraulic sensing device is disposed on the hydraulic lifting platform or the hydraulic pipe of the rotatable rear bucket, the hydraulic sensing device further comprises: a micro processing a hydraulic sensing unit coupled to the hydraulic tube and electrically connected to the micro processing unit for sensing a hydraulic change of the hydraulic lifting platform or the rotatable rear bucket to generate a hydraulic pressure a status signal; a positioning unit electrically connected to the micro processing unit to receive a global positioning signal to generate a position signal; a communication unit electrically connected to the micro processing unit for transmitting the hydraulic status signal and the position Signaling to the dispatch control center; accordingly, the dispatch control center is based on the at least one vehicle having a hydraulic lifting platform or a rear rotatable rear bucket The hydraulic state of the green signal of the driving control table establishing the position signal derived information. The vehicle dispatching system of claim 1, wherein the communication unit transmits the hydraulic status signal and the position signal to the dispatch control center in a mobile communication protocol. The vehicle dispatching system of claim 2, wherein the communication unit transmits the hydraulic status signal and the position signal in a short message form number. The vehicle dispatching system of claim 1, wherein the position signal has a time stamp for depicting a driving trajectory of the vehicle on the electronic map. The vehicle dispatching system of claim 1, wherein the hydraulic status signal records information of the lifting or lowering of the hydraulic lifting platform. The vehicle dispatching system of claim 1, wherein the hydraulic state signal records information about a direction of rotation of the rotatable bucket and a rotational speed. The vehicle dispatching system of claim 4, 5 or 6, wherein the vehicle trajectory, the information of the lifting or lowering of the hydraulic lifting platform, or the rotating direction of the rotatable rear bucket The information on the rotational speed is the information recorded in the traffic control table. A vehicle scheduling method is applied to a vehicle having a hydraulic lifting platform or a rotatable rear bucket, wherein the hydraulic lifting platform or the rotatable rear bucket is provided with a hydraulic sensing device, the hydraulic sensing device having a a positioning unit, a hydraulic sensing unit and a communication unit, the scheduling method includes: the hydraulic sensing unit sensing a hydraulic change when the vehicle is in operation; generating a hydraulic status signal; the positioning unit receiving a satellite positioning signal; generating a a location signal; the communication unit transmits the hydraulic status signal and the position signal; a dispatch control center receives the hydraulic status signal and the position signal; at least one or more vehicle identification information, vehicle coordinates, and equipment Unloading state and time; establishing a row of vehicle management table according to the information obtained by the hydraulic state signal and the position signal; and displaying each vehicle position and driving trajectory on an electronic map; thereby, the vehicle scheduling method is based on the driving control table A scheduler is executed with the information of the electronic map. The vehicle dispatching method according to claim 8, wherein the vehicle having the rotatable rear bucket is a ready-mixed concrete truck. The vehicle dispatching method according to claim 8, wherein the hydraulic sensing device transmits the hydraulic state signal and the position signal through a communication protocol through the communication unit.