Intelligent interaction method for mechanician room of motor train unit and HMI (human machine interface)

Abstract

The invention provides an intelligent interaction method of a motor train unit machinist room and an HMI, and relates to the technical field of rail transit industrial control. Comprising the steps that a relay outputs a low-level signal in response to the mechanician room door opening action; the camera and the HMI receive the low level signal output by the relay, the camera identifies the personnel in the mechanician room, and if the personnel in the mechanician room are not identified, a first control instruction is sent to the HMI; the first control instruction does not carry any identity information; and the HMI receives the first control instruction and extinguishes the HMI. According to the intelligent interaction method for the mechanician room and the HMI of the motor train unit provided by the embodiment of the invention, the control safety of the train can be ensured.

Description

Technical Field

[0001] The present invention relates to the field of rail transit industrial control technology, and in particular to an intelligent interaction method between a motor vehicle unit mechanic room and a HMI. Background Art

[0002] On the EMU train, the mechanic's room is the main monitoring place for the onboard mechanic. When the onboard mechanic is on duty, the mechanic can query various information of the train by touching the touch screen of the HMI, and can also control the train through the touch screen.

[0003] Touch screens include capacitive screens. The electromagnetic environment of current trains is complex and harsh, which will have an impact on the capacitive screen. When no one is touching the capacitive screen, the capacitive screen will spontaneously click on certain positions of the screen due to electromagnetic interference. At this time, if it is unattended, uncontrollable consequences will occur.

[0004] In addition, on-board mechanics will perform regular inspection tasks. During this time, the mechanic's room is unattended, but the HMI still has control functions, which can pose a risk to driving safety. Summary of the invention

[0005] In view of the problems in the prior art, an embodiment of the present invention provides a medium frequency auxiliary converter DCDC control system, which can at least partially solve the problems in the prior art.

[0006] On the one hand, the present invention proposes an intelligent interaction method between a motor vehicle mechanic room and an HMI, comprising:

[0007] In response to the opening of the mechanic's room door, the relay outputs a low-level signal;

[0008] The camera and the HMI receive the low-level signal output by the relay, and the camera identifies the person in the mechanic's room. If the person in the mechanic's room is not identified, the camera sends a first control instruction to the HMI; the first control instruction does not carry any identity information;

[0009] The HMI receives the first control instruction and turns off the HMI.

[0010] The intelligent interaction method between the EMU mechanic room and the HMI further includes:

[0011] If a face of a person in the mechanic's room is identified, the face is identified, the identity information of the person is determined according to the face recognition result, and a second control instruction is sent to the HMI; the second control instruction carries the identity information;

[0012] The HMI receives and parses the second control instruction to obtain the identity information, and if there is no preset identity information identical to the identity information in the first preset corresponding relationship, closes all train control operation permissions;

[0013] Among them, the first preset corresponding relationship includes the corresponding relationship between preset identity information and preset train control operation authority.

[0014] The intelligent interaction method between the EMU mechanic room and the HMI further includes:

[0015] If there is preset identity information that is the same as the identity information in the first preset correspondence, the train control operation authority corresponding to the identity information is determined according to the first preset correspondence and the HMI is lit up so that the person operating the HMI can control the train according to the train control operation authority.

[0016] The face recognition and the determination of the identity information of the person according to the face recognition result include:

[0017] The camera collects the facial image of the person entering the mechanic's room, and compares the facial image with a preset facial image for similarity;

[0018] The camera obtains an image with the maximum similarity comparison result and greater than a preset threshold from the preset face image;

[0019] The camera determines, according to the second preset corresponding relationship, that the identity information corresponding to the one image is the identity information of the person;

[0020] The second preset corresponding relationship includes a corresponding relationship between a preset face image and preset identity information.

[0021] The intelligent interaction method between the EMU mechanic room and the HMI further includes:

[0022] In response to the closing action of the mechanic's room door, the relay outputs a high-level signal;

[0023] The camera and HMI receive the high-level signal output by the relay and maintain the current working state.

[0024] The intelligent interaction method between the EMU mechanic room and the HMI further includes:

[0025] If the camera determines that the number of people in the mechanic's room is greater than 1, the camera sends all identity information of all people to the HMI;

[0026] The HMI uses the highest train control operation authority among all identity information as the authority available to the person operating the HMI.

[0027] On the one hand, the present invention proposes a mechanic's room using the intelligent interaction method between the mechanic's room of a train set and an HMI, comprising:

[0028] The relays, cameras and HMI are connected in pairs, and the two contacts of the relay are hard-connected to the mechanic's room door, so that when the mechanic's room door is opened, the two contacts of the relay are disconnected, and the relay outputs a low-level signal, and when the mechanic's room door is closed, the two contacts of the relay are closed, and the relay outputs a high-level signal.

[0029] The relay circuit controls the two contacts of the relay to be disconnected when the mechanic's room door is opened, and the relay outputs a low-level signal, and the two contacts of the relay to be closed when the mechanic's room door is closed, and the relay outputs a high-level signal;

[0030] The relay circuit comprises a current limiting resistor and a relay;

[0031] One end of the current limiting resistor is connected to a power supply for powering the circuit, and the other end is connected to the input interface of the camera and the HMI; one end of the relay is connected to the input interface of the camera and the HMI, and the other end is grounded.

[0032] Wherein, the HMI includes a power supply for powering the HMI, a first processor, a communication cable and a touch screen;

[0033] Among them, the communication cable is used for network communication connection between the HMI and the camera, the touch screen is used for the person operating the HMI to perform touch screen operations, and the first processor is used to determine the train control operation authority corresponding to the identity information according to the first preset corresponding relationship.

[0034] Wherein, the camera includes a second processor and a memory;

[0035] Wherein, the memory is used to store a preset face image;

[0036] The second processor is used to compare the facial image with a preset facial image for similarity;

[0037] Obtaining an image with the maximum similarity comparison result and greater than a preset threshold from the preset face images;

[0038] The identity information corresponding to the one image is determined as the identity information of the person according to the second preset corresponding relationship.

[0039] The embodiment of the present invention provides an intelligent interaction method between the EMU mechanic's room and the HMI. In response to the action of opening the mechanic's room door, the relay outputs a low-level signal; the camera and the HMI receive the low-level signal output by the relay, and the camera identifies the personnel in the mechanic's room. If the personnel in the mechanic's room is not identified, the camera sends a first control instruction to the HMI; the first control instruction does not carry any identity information; the HMI receives the first control instruction and turns off the HMI, thereby ensuring the safety of train control. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0041] Figure 1 It is a flowchart of an intelligent interaction method between a motor vehicle mechanic room and an HMI provided by an embodiment of the present invention.

[0042] Figure 2 It is a flowchart of an intelligent interaction method between a train mechanic room and an HMI provided by another embodiment of the present invention.

[0043] Figure 3 It is a schematic diagram of the composition structure of a mechanic's room provided by an embodiment of the present invention.

[0044] Figure 4 It is a schematic diagram illustrating the connection relationship between the relay contacts and the mechanic's room door provided in an embodiment of the present invention.

[0045] Figure 5 1 is a relay circuit diagram provided by an embodiment of the present invention.

[0046] Figure 6 It is a circuit diagram of a camera input port provided by an embodiment of the present invention.

[0047] Figure 7 It is a circuit diagram of a camera output port provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention more clear, the embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings. Here, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention. It should be noted that, in the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other arbitrarily.

[0049] Figure 1 FIG. 1 is a flow chart of an intelligent interaction method between a train mechanic room and an HMI provided by an embodiment of the present invention. Figure 1 As shown, the intelligent interaction method between the EMU mechanic room and the HMI provided by the embodiment of the present invention includes:

[0050] S1: In response to the opening of the mechanic's room door, the relay outputs a low-level signal;

[0051] S2: The camera and the HMI receive the low-level signal output by the relay, and the camera identifies the person in the mechanic's room. If the person in the mechanic's room is not identified, the camera sends a first control instruction to the HMI; the first control instruction does not carry any identity information;

[0052] S3: The HMI receives the first control instruction and turns off the HMI. The mechanic room door may be opened when a person walks out of the room or walks into the room. Here, the situation considered is that a person walks out of the room and there is no one in the room.

[0053] The embodiment of the present invention provides an intelligent interaction method between the EMU mechanic's room and the HMI. In response to the action of opening the mechanic's room door, the relay outputs a low-level signal; the camera and the HMI receive the low-level signal output by the relay, and the camera identifies the personnel in the mechanic's room. If the personnel in the mechanic's room is not identified, the camera sends a first control instruction to the HMI; the first control instruction does not carry any identity information; the HMI receives the first control instruction and turns off the HMI, thereby ensuring the safety of train control.

[0054] The intelligent interaction method between the EMU mechanic room and the HMI also includes:

[0055] If a face of a person in the mechanic's room is identified, the face is identified, the identity information of the person is determined according to the face recognition result, and a second control instruction is sent to the HMI; the second control instruction carries the identity information;

[0056] The HMI receives and parses the second control instruction to obtain the identity information, and if there is no preset identity information identical to the identity information in the first preset corresponding relationship, closes all train control operation permissions;

[0057] The first preset correspondence includes the correspondence between the preset identity information and the preset train control operation authority. Here, the case where a person walks into the room and the person who walks into the room is not an HMI operator is considered. The first preset correspondence is pre-configured. If you are not an HMI operator, you will not have the preset train control operation authority. Therefore, the identity information of a person who is not an HMI operator will not be in the preset identity information of the first preset correspondence.

[0058] The intelligent interaction method between the EMU mechanic room and the HMI also includes:

[0059] If there is preset identity information that is the same as the identity information in the first preset correspondence, the train control operation authority corresponding to the identity information is determined according to the first preset correspondence and the HMI is lit up, so that the person operating the HMI can control the train according to the train control operation authority. Here, the situation considered is that a person walks into the room and the person who walks into the room is the HMI operator. The corresponding level of train control operation authority can be opened according to the identity information of the person. Lighting up the HMI can make the touch operation effective, and correspondingly turning off the HMI can make the touch operation invalid.

[0060] The face recognition is performed to determine the identity information of the person according to the face recognition result, including:

[0061] The camera collects the facial image of the person entering the mechanic's room, and compares the facial image with a preset facial image for similarity;

[0062] The camera obtains an image with the maximum similarity comparison result and greater than a preset threshold from the preset face image;

[0063] The camera determines, according to the second preset corresponding relationship, that the identity information corresponding to the one image is the identity information of the person;

[0064] The second preset correspondence includes the correspondence between the preset face image and the preset identity information. The second preset correspondence is pre-configured, and all staff members, even those who are not HMI operators, are configured with the second preset correspondence, so the second preset correspondence is used to match the identity information of the staff members.

[0065] The intelligent interaction method between the EMU mechanic room and the HMI also includes:

[0066] In response to the closing action of the mechanic's room door, the relay outputs a high-level signal;

[0067] The camera and HMI receive the high-level signal output by the relay and maintain the current working state. Since it is impossible to determine whether a person is walking out of the room or walking into the room when the door is closed, it is also impossible to determine whether there are still people in the room at this time. Therefore, the current working state of the camera and HMI is maintained, such as Figure 2 As shown, logical control is performed according to the subsequent judgment process.

[0068] The intelligent interaction method between the EMU mechanic room and the HMI also includes:

[0069] If the camera determines that the number of people in the mechanic's room is greater than 1, the camera sends all identity information of all people to the HMI;

[0070] The HMI uses the highest train control operation authority in all identity information as the authority available to the person operating the HMI. It should be noted that the previous consideration was the case where there was only one person in the room, but this time we consider the case where there are more than one person in the room, and explain the two situations of walking into the room and walking out of the room respectively:

[0071] Walking into the room: There are persons A and B in the room, and person C walks into the room. The camera sends the identity information of A, B and C to the HMI. If A's train control operation authority is low-level, B's control operation authority is medium-level, and C's train control operation authority is high-level, before person C enters the room, the authority available to the person operating the HMI is medium-level authority, which can ensure that A can also use the medium-level authority under B's supervision.

[0072] After person C enters the room, the permissions available to the personnel operating the HMI are advanced permissions, which can ensure that A and B can also use advanced permissions under C's supervision.

[0073] Walking out of the room: There are persons A, B and C in the room. Person C walks out of the room. The camera sends the identity information of A and B to the HMI. Before person C walks out of the room, the permissions available to the person operating the HMI are advanced permissions. This ensures that A and B can also use advanced permissions under the supervision of C.

[0074] After person C leaves the room, the authority available to the person operating the HMI is the intermediate authority, which ensures that A can also use the intermediate authority under B's supervision.

[0075] The embodiment of the present invention provides a mechanic's room using the intelligent interaction method between the mechanic's room of a train set and the HMI, such as Figure 3 As shown, the mechanic room includes:

[0076] The relays, cameras and HMI are connected in pairs, and the two contacts of the relay are hard-wired to the mechanic's room door, so that when the mechanic's room door is opened, the two contacts of the relay are disconnected, and the relay outputs a low-level signal, and when the mechanic's room door is closed, the two contacts of the relay are closed, and the relay outputs a high-level signal. Figure 4 As shown, the connection relationship between the contacts of the relay and the mechanic's room door.

[0077] The mechanic's room is equipped with a swing door that leads from the carriage corridor to the mechanic's room. The mechanic's room is equipped with an HMI, relays and biometric cameras. A relay is installed on the side of the mechanic's room door, and the mechanic's room door is connected to the relay contact. The relay contact is closed when the mechanic's room door is closed and disconnected when the mechanic's room door is opened. The relay can control an output signal, which is output to the HMI and the biometric camera at the same time.

[0078] Inside the mechanic's room, a biometric camera is set in the same direction as the HMI screen, which can identify the facial features of people entering the mechanic's room and determine the identity of the person entering. The biometric camera is set with input and output ports. The input port receives signals from the relay, and the output port sends data to the HMI.

[0079] Inside the mechanic's room, there is an HMI, which can be used to query various information of the train through the touch capacitive screen, and can also be used to control the train in an emergency. The HMI can receive input signals and data from relays and biometric cameras.

[0080] The relay circuit controls that when the mechanic's room door is opened, the two contacts of the relay are disconnected, and the relay outputs a low-level signal at this time; and when the mechanic's room door is closed, the two contacts of the relay are closed, and the relay outputs a high-level signal at this time;

[0081] The relay circuit comprises a current limiting resistor and a relay;

[0082] One end of the current limiting resistor is connected to the power supply for the circuit, and the other end is connected to the input interface of the camera and HMI; one end of the relay is connected to the input interface of the camera and HMI, and the other end is grounded. Figure 5 As shown, the power supply for the circuit can be selected as +5V. The contacts of the relay are hard-connected to the swing door of the mechanic's room. When the swing door is opened, the relay contacts are disconnected, the relay is disconnected, +5V is disconnected from the input interface of the biometric camera and HMI, and the biometric camera and HMI collect a low level. When the swing door is closed, +5V is connected to the input interface of the biometric camera and HMI, and the biometric camera and HMI collect a high level.

[0083] The HMI includes a power supply for powering the HMI, a first processor, a communication cable, and a touch screen;

[0084] Among them, the communication cable is used for network communication connection between the HMI and the camera, the touch screen is used for the person operating the HMI to perform touch screen operations, and the first processor is used to determine the train control operation authority corresponding to the identity information according to the first preset corresponding relationship.

[0085] The camera includes a second processor and a memory;

[0086] Wherein, the memory is used to store a preset face image;

[0087] The second processor is used to compare the facial image with a preset facial image for similarity;

[0088] Obtaining an image with the maximum similarity comparison result and greater than a preset threshold from the preset face images;

[0089] The identity information corresponding to the image is determined as the identity information of the person according to the second preset corresponding relationship. Figure 6 As shown, the camera output port circuit is as follows Figure 7 shown.

[0090] After receiving the low-level signal from the relay, the biometric camera starts face recognition. After identifying the identity information, it compares it with its own database and sends the identity information to the HMI. If the identity information is not identified at this time, the HMI will not be enabled, the HMI screen will not light up, and the touch function will not be started.

[0091] After receiving the low-level signal from the relay, the HMI waits for the identity information from the biometric camera. After receiving the identity information, the permission level is determined according to the internal software logic and the HMI is lit.

[0092] After the biometric camera detects that there is no one in the mechanic's room, it outputs the information to the HMI through the output interface. After receiving the signal, the HMI blocks the touch function and turns off the screen.

[0093] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0094] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0095] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0096] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0097] In the description of this specification, the description with reference to the terms "one embodiment", "a specific embodiment", "some embodiments", "for example", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0098] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An intelligent interaction method between a train mechanic room and HMI, characterized in that: include: In response to the opening of the mechanic's room door, the relay outputs a low-level signal; The camera and the HMI receive the low-level signal output by the relay, and the camera identifies the person in the mechanic's room. If the person in the mechanic's room is not identified, the camera sends a first control instruction to the HMI; the first control instruction does not carry any identity information; The HMI receives the first control instruction and turns off the HMI.

2. The intelligent interaction method between the EMU mechanic room and the HMI according to claim 1 is characterized in that: The intelligent interaction method between the EMU mechanic room and the HMI also includes: If a face of a person in the mechanic's room is identified, the face is identified, the identity information of the person is determined according to the face recognition result, and a second control instruction is sent to the HMI; the second control instruction carries the identity information; The HMI receives and parses the second control instruction to obtain the identity information, and if there is no preset identity information identical to the identity information in the first preset corresponding relationship, closes all train control operation permissions; Among them, the first preset corresponding relationship includes the corresponding relationship between preset identity information and preset train control operation authority.

3. The intelligent interaction method between the EMU mechanic room and the HMI according to claim 2 is characterized in that: The intelligent interaction method between the EMU mechanic room and the HMI also includes: If there is preset identity information that is the same as the identity information in the first preset correspondence, the train control operation authority corresponding to the identity information is determined according to the first preset correspondence and the HMI is lit up so that the person operating the HMI can control the train according to the train control operation authority.

4. The intelligent interaction method between the EMU mechanic room and HMI according to claim 2 is characterized in that: The face recognition is performed to determine the identity information of the person according to the face recognition result, including: The camera collects the facial image of the person entering the mechanic's room, and compares the facial image with a preset facial image for similarity; The camera obtains an image with the maximum similarity comparison result and greater than a preset threshold from the preset face image; The camera determines, according to the second preset corresponding relationship, that the identity information corresponding to the one image is the identity information of the person; The second preset corresponding relationship includes a corresponding relationship between a preset face image and preset identity information.

5. The intelligent interaction method between the EMU mechanic room and HMI according to claim 1, characterized in that: The intelligent interaction method between the EMU mechanic room and the HMI also includes: In response to the closing action of the mechanic's room door, the relay outputs a high-level signal; The camera and HMI receive the high-level signal output by the relay and maintain the current working state.

6. The intelligent interaction method between the EMU mechanic room and HMI according to claim 1, characterized in that: The intelligent interaction method between the EMU mechanic room and the HMI also includes: If the camera determines that the number of people in the mechanic's room is greater than 1, the camera sends all identity information of all people to the HMI; The HMI uses the highest train control operation authority among all identity information as the authority available to the person operating the HMI.

7. A mechanic's room using the intelligent interaction method between the mechanic's room of a train set and HMI as claimed in claim 1, characterized in that: The mechanic's room includes: The relays, cameras and HMI are connected in pairs, and the two contacts of the relay are hard-connected to the mechanic's room door, so that when the mechanic's room door is opened, the two contacts of the relay are disconnected, and the relay outputs a low-level signal, and when the mechanic's room door is closed, the two contacts of the relay are closed, and the relay outputs a high-level signal.

8. The mechanic's room according to claim 7, characterized in that: The relay circuit controls that when the mechanic's room door is opened, the two contacts of the relay are disconnected, and the relay outputs a low-level signal at this time; and when the mechanic's room door is closed, the two contacts of the relay are closed, and the relay outputs a high-level signal at this time; The relay circuit comprises a current limiting resistor and a relay; One end of the current limiting resistor is connected to a power supply for powering the circuit, and the other end is connected to the input interface of the camera and the HMI; one end of the relay is connected to the input interface of the camera and the HMI, and the other end is grounded.

9. The mechanic's room according to claim 7, characterized in that: The HMI includes a power supply for powering the HMI, a first processor, a communication cable, and a touch screen; Among them, the communication cable is used for network communication connection between the HMI and the camera, the touch screen is used for the person operating the HMI to perform touch screen operations, and the first processor is used to determine the train control operation authority corresponding to the identity information according to the first preset corresponding relationship.

10. The mechanic's room according to claim 7, characterized in that: The camera includes a second processor and a memory; Wherein, the memory is used to store a preset face image; The second processor is used to compare the facial image with a preset facial image for similarity; Obtaining an image with the maximum similarity comparison result and greater than a preset threshold from the preset face images; The identity information corresponding to the one image is determined as the identity information of the person according to the second preset corresponding relationship.

Images