CN112684753A - Driving state monitoring system of automatic driving vehicle - Google Patents

Abstract

The invention discloses a driving state monitoring system of an automatic driving vehicle, and aims to provide a driving state monitoring system of an automatic driving vehicle with high positioning precision. The intelligent control system comprises a coil, a PLC (programmable logic controller), a signal receiving and transmitting antenna, an exchanger and a central control computer; the coils are a plurality of and are laid on the road along the driving path of the automatic driving vehicle; the coil is used for collecting the position information of the automatic driving vehicle and sending the information transmitted by the central control computer to the signal receiving and transmitting antenna; the signal receiving and transmitting antenna is arranged on the automatic driving vehicle and used for receiving coil information data and transmitting the received information data to a central control unit of the vehicle; the PLC is arranged in the control cabinet and used for collecting and arranging information of coils laid on the ground and equipment in the control cabinet; and the central control computer is communicated with the PLC through a switch. The invention is suitable for monitoring the running of various automatic driving vehicles.

Description

Driving state monitoring system of automatic driving vehicle

Technical Field

The invention relates to the technical field of vehicle safety equipment, in particular to a driving state monitoring system of an automatic driving vehicle.

Background

At present, the automatic driving technology is very popular, most automatic driving vehicles are positioned by satellites, the satellite positioning mode is easily interfered by weather and the like, the precision is not high, and the exact position of the vehicle is difficult to know once the mode breaks down, so that the driving safety is seriously damaged. In addition, the vehicle can not travel without the assistance of other electrical equipment, and the real-time monitoring of the safety state of the electrical equipment is also very important for the driving safety.

Therefore, a real-time detection system for vehicle position and other auxiliary electrical devices is needed to improve the safety of the autonomous vehicle.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a driving state monitoring system of an automatic driving vehicle, which has stable signals and easy maintenance, can effectively improve the positioning precision of the parking space and can realize the effective monitoring of auxiliary electrical equipment.

In order to solve the technical problems, the invention is realized by the following technical scheme:

a driving state monitoring system of an automatic driving vehicle comprises a coil, a PLC (programmable logic controller), a signal receiving and transmitting antenna, an exchanger and a central control computer; the coils are a plurality of and are laid on the road along the driving path of the automatic driving vehicle; the coil is used for collecting the position information of the automatic driving vehicle and sending the information transmitted by the central control computer to the coil laid on the ground; the signal receiving and transmitting antenna is arranged on the automatic driving vehicle and used for receiving coil information data and transmitting the received information data to a central control unit of the vehicle; the PLC is arranged in the control cabinet and used for collecting and arranging information of coils laid on the ground and equipment in the control cabinet; and the central control computer is communicated with the PLC through a switch.

Preferably, the devices in the control cabinet comprise a power supply device of a road, a network device, a cabinet door switch detection device of the control cabinet, a temperature detection device in the control cabinet and a relay for controlling a coil switch.

Preferably, the PLC controllers are multiple and are in communication connection with the central control computer through the switch.

The installation steps of the driving state monitoring system of the automatic driving vehicle are as follows:

1) the coils are paved on a road in a staggered and superposed mode, and the high level which can be identified by the PLC is 11-26V due to the weak voltage of the coils; therefore, coil signals need to be amplified and then accessed to an input point of the PLC after analog-to-digital conversion;

2) mounting a signal transceiving antenna on a vehicle;

3) a cabinet door switch detection device, a relay for controlling a coil switch, a power supply device and a switch are arranged in the electric control cabinet, and the devices are respectively connected into a PLC (programmable logic controller);

4) connecting a plurality of groups of coils to a PLC controller, and connecting the PLC controller and a central control computer to a switch to complete networking;

5) and programming the PLC control to realize data acquisition and coil switch control of each coil and facilities in the cabinet.

Compared with the prior art, the invention has the following advantages:

the invention has the characteristics of simple operation, high visualization degree, good stability and the like, and not only has stable and reliable signal transmission and high positioning precision, but also has strong equipment reliability and is easy to maintain.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a logic diagram of the connection of the entire network of the present invention, in which the signal transceiver antenna is not shown, wherein there may be multiple PLC controllers or one PLC controller, and each PLC controller and the central control computer are connected to the switch.

Fig. 2 is a schematic view of the coil alternating with the pavement on the road.

Fig. 3 is a schematic diagram of the state of the coil when the vehicle is occupied, and the hatched portion in the diagram indicates the occupied state.

Fig. 4 is a schematic diagram of the connection of the coil and the auxiliary equipment with the PLC controller.

Detailed Description

In order to more clearly illustrate the objects, technical solutions and advantages of the present invention, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention described below, are within the scope of protection of the present invention.

In the description of the present invention, technical or scientific terms used should have the ordinary meaning as understood by those having ordinary skill in the art to which the present invention belongs. It should be noted that unless otherwise expressly stated or limited, the terms "mounted," "connected," "disposed," and the like are intended to be broadly construed and include, for example, fixedly connected, disposed, detachably connected, disposed, and integrally connected and disposed. The terms "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, and those skilled in the art will understand that the terms are used in the present invention according to their specific meanings. The terms "comprises" or "comprising," and the like, mean that the element or item preceding the term includes the element or item listed after the term and its equivalent, but not excluding other elements or items. The terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description and simplicity of description only, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.

Meanwhile, in order to keep the following description of the embodiments of the present invention clear and concise, a detailed description of known functions and known parts of the present invention is omitted.

As shown in the attached drawings, the driving state monitoring system of the automatic driving vehicle comprises a coil 1, a PLC (programmable logic controller) 2, a signal receiving and transmitting antenna (not shown in the figure), an exchanger 3 and a central control computer 4; the coils 1 are laid on the road along the driving path of the automatic driving vehicle 10; the coil 1 is used for collecting the position information of the automatic driving vehicle 10 and sending the information transmitted by the central control computer 4 to a coil laid on the ground; the signal receiving and transmitting antenna is arranged on the automatic driving vehicle 10 and is used for receiving information data of the coil 1 and sending the received information data to a central control unit of the vehicle; the PLC controller 2 is arranged in the control cabinet, and the PLC controller 2 is used for collecting and arranging information of coils laid on the ground and equipment in the control cabinet; and the central control computer 4 is communicated with the PLC 2 through the switch 3.

In this embodiment, the devices in the control cabinet are collectively referred to as other auxiliary devices 30, and include power supply devices on roads, network devices, cabinet door switch detection devices of the control cabinet, temperature detection devices in the control cabinet, relays for controlling opening and closing of the coil 1, and the like, where the power supply devices adopt uninterruptible power supply devices (USP).

Obviously, when the number of coil groups is large, a plurality of PLC controllers 2 may be used to collect corresponding device information in groups.

The installation steps of the invention are as follows:

1) the coil 1 is paved on the road 20 in a staggered and superposed mode, and the high level which can be identified by the PLC 2 is 11-26V due to the weak voltage of the coil 1; therefore, the signals of the coil 1 need to be amplified and then accessed to the input point of the PLC after analog-to-digital conversion;

2) mounting a signal transceiving antenna on a vehicle;

3) a cabinet door switch detection device, a relay for controlling the switch of the coil 1, a power supply device, an exchanger and the like are arranged in the electric control cabinet, and the devices are respectively connected into the PLC 2;

4) connecting a plurality of groups of coils 1 to a PLC controller, and connecting the PLC controller and a central control computer 4 to an exchanger 3 to complete networking;

5) and programming the PLC control to realize data acquisition of each coil 1 and facilities in the cabinet and switch control of the coil 1.

In order to further improve the safety protection of the autonomous vehicle 10, it is sometimes necessary to manually control the advance and wait of the autonomous vehicle 10, the advance and wait signals of the autonomous vehicle 10 being transmitted by a coil 1 laid on the road 20, the vehicle being able to advance when the coil 1 transmits the advance signal, otherwise the vehicle is in a wait state. The state of the coil 1 and the control cabinet can be controlled manually as necessary by the central control room.

The control cabinet, the central control unit and the controller of the vehicle and the like involved in the invention are the prior art, and can be completely realized by those skilled in the art without repeated description.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. It will be understood by those skilled in the art that any modification, equivalent replacement, or improvement made on the technical solutions or parts of the technical features described in the above embodiments can be included in the scope of protection of the present invention within the spirit and principle of the present invention.

Claims (4)

1. A driving state monitoring system of an automatic driving vehicle comprises a coil, a PLC (programmable logic controller), a signal receiving and transmitting antenna, an exchanger and a central control computer; the method is characterized in that: the coils are a plurality of and are laid on the road along the driving path of the automatic driving vehicle; the coil is used for collecting the position information of the automatic driving vehicle and sending the information transmitted by the central control computer to the signal receiving and transmitting antenna; the signal receiving and transmitting antenna is arranged on the automatic driving vehicle and used for receiving coil information data and transmitting the received information data to a central control unit of the vehicle; the PLC is arranged in the control cabinet and used for collecting and arranging information of coils laid on the ground and equipment in the control cabinet; and the central control computer is communicated with the PLC through a switch.

2. A driving state monitoring system of an autonomous vehicle according to claim 1, characterized in that: the PLC controllers are multiple and are in communication connection with the central control computer through the switch.

3. A running state monitoring system of an autonomous vehicle according to claim 1 or 2, characterized in that: the equipment in the control cabinet comprises power supply equipment of a road, network equipment, cabinet door switch detection equipment of the control cabinet, temperature detection equipment in the control cabinet and a relay for controlling a coil switch.

4. A driving state monitoring system of an autonomous vehicle according to claim 1 or 2, characterized by the steps of installing as follows:

1) the coils are paved on a road in a staggered and superposed mode, and the high level which can be identified by the PLC is 11-26V due to the weak voltage of the coils; therefore, coil signals need to be amplified and then accessed to an input point of the PLC after analog-to-digital conversion;

2) mounting a signal transceiving antenna on a vehicle;

3) a cabinet door switch detection device, a relay for controlling a coil switch, a power supply device and a switch are arranged in the electric control cabinet, and the devices are respectively connected into a PLC (programmable logic controller);

4. connecting a plurality of groups of coils to a PLC controller, and connecting the PLC controller and a central control computer to a switch to complete networking;

5) and programming the PLC control to realize data acquisition and coil switch control of each coil and facilities in the cabinet.

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