A locomotive hard-wire reconnection signal safety transmission method and system and a reconnection locomotive

Abstract

The application discloses a locomotive hard-wire reconnection signal safe transmission method, which firstly sets the correspondence between coding and signals in advance, the signals including reconnection control signals, check signals and check error signals; the locomotive transmits target signals through hard wires; when the target signal is a reconnection control signal, the transmission method acquires the to-be-sent state of the reconnection control signal and judges whether the reconnection control signal needs to be sent. The transmission method realizes that N reconnection hard wires can transmit 2 N signals under the premise that the number of hard wires is limited, wherein the reconnection control signals are 2 N -2 kinds, and the utilization rate of the reconnection hard wires is improved; the check signal and the check error signal are used to realize a check and error feedback mechanism, so that the signals of the master and slave locomotives are consistent; meanwhile, a signal sending mechanism is designed according to the to-be-sent state of the reconnection control signal, so that the signal sending is orderly performed. The application further discloses a locomotive hard-wire reconnection signal safe transmission system and a reconnection locomotive.

Description

TECHNICAL FIELD

[0001] The present application relates to a locomotive hard-wire reconnection signal safety transmission method and system, and a reconnection locomotive, belonging to the field of rail transit. BACKGROUND

[0002] The reconnection signal transmission between trains usually adopts a WTB (Wire Train Bus) communication bus, but in some cases, the communication line cannot meet the requirements or the train is not equipped with a special reconnection network device, and ordinary hard-wire can be used to transmit the reconnection signal.

[0003] In order to transmit as many signals as possible in a limited number of hard-wires, the signals can be transmitted by combination. For example, if 5 hard-wires are used alone, each hard-wire can only transmit 1 and 0, a total of 10 state information, if hard-wire combination coding is used, there are 32 combinations, which can transmit 31 state information (all 0 represents an idle state). Although the combined signal can transmit more information, the signal transmission process is relatively complex, and how to handle the signal concurrency and how to guarantee the safety of signal transmission are problems that need to be considered. When using hard-wire combination to transmit signals, the following problems exist:

[0004] 1) The combined signal can only be transmitted in one direction, that is, from the master to the slave, and the master cannot know whether the slave can correctly receive the signal after sending the signal, nor can it know whether all the reconnection signals of the slave are the same as those of the master, and the safety of the signal cannot be guaranteed.

[0005] 2) Only one combined signal can be transmitted at the same time, but the signal triggering time is random, and there may be multiple signals triggered in the same time period.

[0006] Chinese invention patent application No. 201810690695.9 relates to a transmission method and system for instructions between locomotives and a reconnection locomotive. The transmission method for instructions between locomotives first sets a corresponding relationship between N-bit binary numbers and instructions, so that each N-bit binary number corresponds to an instruction. Then, the master transmits the target N-bit binary number corresponding to the target instruction to the slave through N first hard-wires, so that each bit of the target N-bit binary number can be transmitted to the slave through one first hard-wire. Finally, the slave can determine the target instruction according to the corresponding relationship between the N-bit binary number and the instruction, thereby completing the transmission of instructions between locomotives. It can be seen that by applying the transmission method, N hard-wires can transmit 2 NThe instruction can effectively improve the transmission efficiency of the instruction; meanwhile, with the improvement of the transmission efficiency of the instruction, the number of hard wires can be reduced, and the hard wire connection structure can be further simplified. However, the patent still needs to additionally provide one hard wire for feeding back the instruction receiving state, and each instruction must be received after the feedback is received before the next instruction is sent, and only whether the instruction is received can be fed back, and whether the received instruction is correct cannot be known. Therefore, for the transmission efficiency and signal safety under the limited number of hard wires, a more effective solution is still needed. SUMMARY

[0007] The present application aims to provide a locomotive hard-wire reconnection signal safety transmission method, system and reconnection locomotive, to improve the transmission efficiency and signal transmission safety under the limited number of reconnection hard wires.

[0008] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows: a locomotive hard-wire reconnection signal safety transmission method, the transmission method comprising:

[0009] Step 1), the correspondence between the encoding and the signal is set in advance; the signal includes a reconnection control signal, a check signal, a check error signal and an emergency signal;

[0010] The number of hard wires N is determined based on the number of reconnection control signals, then one N-bit binary number corresponds to one encoding, and one N-bit binary number and signal duration correspond to one signal; wherein N is a positive integer;

[0011] The reconnection control signal and the check signal are distinguished by the corresponding signal duration, and the emergency signal and the check error signal are distinguished by the corresponding signal duration;

[0012] Step 2), the locomotive transmits a target signal through a hard wire, the target signal corresponds to a target N-bit binary number and the signal duration;

[0013] Wherein, when the target signal is the reconnection control signal, the state of the reconnection control signal to be sent is obtained, and it is judged whether the reconnection control signal needs to be sent:

[0014] Step a1), if the state of the reconnection control signal to be sent is to be sent, the corresponding target encoding is sent, and the state of the reconnection control signal to be sent is reset to have been sent,

[0015] Step a2), when the reconnection control signal is sent or the state of the reconnection signal to be sent is already sent, the state of the next target signal to be sent is read;

[0016] The locomotive comprises the main vehicle and the slave vehicle.

[0017] The transmission method provided by the application realizes that N recombination hard lines can transmit 2 N recombination control signals, improves the utilization rate of the recombination hard lines, realizes a check and error feedback mechanism through the check signal and the check error signal, ensures that the signals of the master and slave vehicles are consistent, and simultaneously, according to the to-be-sent state of the recombination control signal, designs a signal sending mechanism to ensure that the signal sending is sequentially performed. N N The transmission method provided by the application realizes that N recombination hard lines can transmit 2

[0018] According to the embodiments of the application, the application can be further optimized, and the following is a technical scheme formed after optimization:

[0019] In one preferred embodiment, in the step 2), when the target signal is the recombination control signal, the obtaining of the to-be-sent state of the recombination control signal specifically includes:

[0020] When the recombination control signal triggers and the state of the recombination control signal changes from 0 to 1, the to-be-sent state of the recombination control signal is set as to-be-sent;

[0021] When the state of the recombination control signal is 0, the to-be-sent state of the recombination control signal is reset as having been sent;

[0022] The to-be-sent state of the recombination control signal is obtained after the setting and resetting of the recombination control signal.

[0023] In one preferred embodiment, in the step a2), the next target signal is the first recombination control signal or the adjacent recombination control signal.

[0024] When the next target signal is the first recombination control signal, the signal sending mode of the transmission method is a priority sending mode, and when the next target signal is the adjacent recombination control signal, the signal sending mode of the transmission method is a sequential sending mode.

[0025] In one preferred embodiment, the step 2) that the locomotive transmits the target signal through the hard lines specifically includes:

[0026] Step 2.1), the master vehicle transmits the recombination control signal to the locomotive through N hard lines,

[0027] Step 2.2), the locomotive receives the recombination control signal through N hard lines, and the locomotive stores the recombination control signal as a target recombination control signal,

[0028] Step 2.3), after all the reconnection control signals are sent, the host vehicle sends the check signal to the locomotive through the N hard wires,

[0029] Step 2.4), after the locomotive receives the check signal through the N hard wires, the locomotive checks the target reconnection control signal,

[0030] Step 2.5), when the locomotive passes the check of the target reconnection control signal, the locomotive outputs the target reconnection control signal through the N hard wires,

[0031] Step 2.6), when the locomotive fails to pass the check of the target reconnection control signal, the locomotive feeds back the check error signal to the host vehicle through the N hard wires, and the locomotive clears the target reconnection control signal,

[0032] Step 2.7), when the host vehicle receives the check error signal through the N hard wires, the state of the reconnection control signal to be sent is reset to be sent, and the host vehicle retransmits the reconnection control signal to the locomotive through the N hard wires.

[0033] In one preferred embodiment, the signal further comprises an idle signal, and the step 2) of transmitting the target signal by the locomotive through the hard wires further comprises:

[0034] Step 2.8), when the target signal is the idle signal, the host vehicle sends the check signal to the locomotive through the N hard wires every first time interval, and the locomotive sends the check error signal if the check signal is not received within a second time interval;

[0035] Step 2.9), when the target signal is the emergency signal, the locomotive processes the emergency signal preferentially.

[0036] In one preferred embodiment,

[0037] In the step 2.1), the host vehicle transmits the reconnection control signal to the locomotive through the N hard wires, and the locomotive is traction-locked,

[0038] In the step 2.5), when the locomotive passes the check of the target reconnection control signal, the locomotive is traction-unlocked, and the locomotive outputs the target reconnection control signal through the N hard wires,

[0039] In the step 2.7), when the host vehicle receives the check error signal through the N hard wires, the locomotive is traction-locked, the state of the reconnection control signal to be sent is reset to be sent, and the host vehicle retransmits the reconnection control signal to the locomotive through the N hard wires.

[0040] Based on the above preferred embodiments, when the signal received from the car is inconsistent with the host car, the transmission method provided by the application can realize automatic error correction after the host car receives the error feedback signal, so that the locomotive is more intelligent, and the host car will also be protected accordingly.

[0041] In one of the preferred embodiments, the check signal is a CRC signal, and the check error signal is a CRC error signal.

[0042] Based on the same concept, the application also provides a locomotive hard-wire reconnection signal safety transmission system, which comprises a memory and one or more processors; the memory stores one or more programs, which, when executed by the one or more processors, cause the one or more processors to implement the steps of the above method.

[0043] Based on the same concept, the application also provides a reconnection locomotive, which comprises a reconnection locomotive body and a locomotive hard-wire reconnection signal safety transmission system as described above.

[0044] Advantages

[0045] Compared with the prior art, the application has the following advantages:

[0046] 1) Including check signals, check error signals and emergency signals, N reconnection hard-wires can transmit 2 N signals, of which the reconnection control signals are 2 N -2, which improves the utilization rate of the reconnection hard-wire;

[0047] 2) By detecting the state of the signal to be sent to determine whether the corresponding signal needs to be sent, the signal triggering process and the signal sending process do not interfere with each other, and can support multiple signals to be triggered at the same time without human control of the signal triggering order;

[0048] 3) The order sending mode and the priority sending mode can be selected according to the demand, and when the priority sending mode is selected, the signal with higher priority responds faster;

[0049] 4) It has data checking, error feedback and automatic error correction functions, which can effectively ensure the safety of signal transmission, and when an error occurs in signal transmission, the train can be protected in time, and the error can be automatically corrected, reducing human intervention. BRIEF DESCRIPTION OF DRAWINGS

[0050] Figure 1 is the basic flowchart of the sending and receiving of the reconnection control signal of the embodiment of the application;

[0051] Figure 2 is a schematic diagram of the order sending method of the embodiment of the application;

[0052] Figure 3 is a priority sending method schematic diagram of an embodiment of the present application;

[0053] Figure 4 is a CRC check code sending schematic diagram of an embodiment of the present application;

[0054] Figure 5 is a CRC check code receiving and checking schematic diagram of an embodiment of the present application;

[0055] Figure 6 is a CRC error signal receiving and processing schematic diagram of an embodiment of the present application. DETAILED DESCRIPTION

[0056] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0057] Embodiment 1

[0058] Figure 1 is a flowchart of a locomotive hard-wire reconnection signal safety transmission method provided by Embodiment 1 of the present application. As shown in the figure, the locomotive hard-wire reconnection signal safety transmission method provided by the present application includes: Figure 1

[0059] 1) Signal coding

[0060] In this embodiment 1, the signal is transmitted through reconnection hard-wire. N hard-wires are used to transmit N-bit binary numbers, and N-bit binary numbers can represent 0 to 2 N -1 decimal numbers, so N-bit binary numbers can represent 2 N kinds of coding, that is, 2 N kinds of combination coding of N hard-wires. Among them, all 0 is used to represent line idle, all 1 represents special signals such as CRC error signal and emergency signal, and the rest of the coding is used to represent reconnection control signals (X1, X2, … Xi…, Xn) and CRC signals, wherein 1≤i≤n, 1≤n≤2 N -2. In order to distinguish each reconnection control signal, a unique code needs to be assigned to each reconnection control signal. The reconnection control signal and the CRC signal are distinguished according to the pulse width (i.e. signal duration) of the signal. The coding definition and pulse width are shown in Table 1.

[0061] Table 1 Coding definition and pulse width

[0062]

[0063]

[0064] ​The pulse width is a typical value, which can be shortened or lengthened as appropriate, and it should be noted that the effective width of the reconnection control signal and the CRC signal cannot overlap.

[0065] 2) Signal transmission and reception control

[0066] ① Signal transmission and reception basic flow

[0067] In this embodiment 1, the sending and receiving basic flow of the reconnection control signal is as shown in Figure 1

[0068] When the reconnection control signal is triggered, the master control vehicle will send these reconnection control signals in a certain order, and each reconnection control signal will be marked as having been sent after being sent. Until the signal is triggered again. When all signals are sent, an N-bit CRC check code is generated according to the current state of the reconnection control signal and sent through the reconnection hardwire.

[0069] The slave vehicle will receive the signal on the reconnection hardwire in real time. When the received signal is a reconnection control signal, the signal will be latched to obtain the target reconnection control signal (Y1, Y2, … Yj, …, Yn), where 1≤j≤n, and then output the target reconnection control signal as the reconnection control signal of the slave vehicle. When the received signal is a CRC check code, the latched target reconnection control signal (Y1, Y2, … Yj, …, Yn) is subjected to CRC check, and if the check fails, the target reconnection control signal (Y1, Y2, … Yj, …, Yn) is cleared. At the same time, send a CRC error signal to the reconnection hardwire.

[0070] After the master control vehicle receives the CRC error signal, it will reset the sent state of the reconnection control signal (X1, X2, … Xi, …, Xn) and start sending the reconnection control signal (X1, X2, … Xi, …, Xn) again. At the same time, the locomotive traction is blocked.

[0071] ② Signal transmission method

[0072] Signal triggering and resetting is a random process, and there may be multiple signal triggers at the same time. Signal transmission must be sequential, and only one signal can be sent at the same time. To ensure that the signal transmission is sequential, this embodiment 1 provides two signal transmission methods, method 1 is a sequential transmission method, as shown in Figure 2 , and method 2 is a transmission method with priority, as shown in Figure 3 .

[0073] Method 1: Sequential transmission method

[0074] ​Method 1 mainly includes two processes, signal preprocessing and signal sending. The purpose of signal preprocessing is to obtain the state of the signal to be sent, and the state of the signal to be sent is detected when the signal is sent. Through signal preprocessing, the signal triggering process and the signal sending process are independent and do not interfere with each other, which can effectively solve the problem of multiple signals triggering at the same time.

[0075] Signal preprocessing process: when the state of the reconnection control signal X changes from 0 to 1, set the state of the signal to be sent S = 1; when the reconnection control signal X is 0, reset the state of the signal to be sent S = 0. After the reconnection control signal (X1, X2, … Xi, …, Xn) is set and reset, the state of the reconnection control signal to be sent S1, S2, … Si, …, Sn is obtained. Wherein, X ∈ {X1, X2, … Xi, …, Xn}, S ∈ {S1, S2, … Si, …, Sn}.

[0076] Signal sending process: when the reconnection control signal is sent, the state of S1, S2, … Si, …, Sn is read to determine whether the corresponding signal needs to be sent. For example, when the state of the signal to be sent S of a certain signal X is read as 1, the corresponding code combination of the signal X is sent to the reconnection hard line, and the state of the signal to be sent S of the signal X is reset to 0, which means that the signal X has been sent and will not be sent in the next cycle. When the signal is sent or the state of the signal to be sent S of the signal X is read as 0, and it is detected that the line is idle, the state of the next adjacent signal to be sent is read. The reading order of S1-Sn is S1, S2, S3, … Si, …, Sn, and when Sn is read, it returns to S1 again.

[0077] Method 2: priority sending method

[0078] This method is similar to the sequential sending method and also includes two processes, signal preprocessing and signal sending, the difference is that after each signal is sent, the state of the next adjacent signal to be sent is not read, but the state of S1 is read again. For example, when the state of the signal to be sent S of the signal X is read as 1, the signal X is sent to the reconnection hard line, and when the signal is sent and it is detected that the line is idle, the state of S1 is read again; when the state of the signal to be sent S of the signal X is read as 0, the state of the next adjacent signal to be sent is read.

[0079] The priority sending method is characterized in that the sending priority of the reconnection control signal (X1, X2, … Xi, …, Xn) is not the same, and the priority of the signal in front is higher than that of the signal behind. When multiple reconnection control signals need to be sent, the signal in front will be sent first, and the response speed will also be faster.

[0080] ③CRC check

[0081] CRC code sending: CRC code sending process is shown in Figure 4 If the master vehicle detects that the line is idle and no new signal triggers after sending all signals, it sends CRC code to the bus (i.e. the hardwired bus), which is generated by the current state of the reconnection control signals (X1, X2, … Xi, …, Xn). The number of CRC bits matches the number of hardwired buses. The specific CRC code generation algorithm has many kinds, which are not limited here. In addition, to ensure that the signals of the master and slave vehicles are always consistent and prevent signal errors caused by line faults, CRC code needs to be sent to the bus every 5 seconds when the bus is idle.

[0082] CRC code receiving and checking: CRC code receiving and checking process is shown in Figure 5 When receiving the CRC code, the CRC code is generated according to the current received target reconnection control signal (Y1, Y2, … Yj, …, Yn) according to the same rule. If the generated check code is inconsistent with the received check code, output the CRC check error signal. If no CRC code is received after a certain time after the signal is sent, it represents a CRC receiving fault, and the CRC check error signal is also output. When the CRC check error occurs, the whole train traction is locked, and then the CRC error signal is sent to the bus (i.e. the hardwired bus).

[0083] CRC error signal receiving and processing: CRC error signal receiving and processing process is shown in Figure 6 When the master vehicle receives the CRC error signal code, it represents that at least one vehicle has a CRC check error. At this time, the master vehicle will resend all triggered signals of X1, X2, … Xi, …, Xn. In this way, the vehicle can automatically recover to the normal state.

[0084] ④ Emergency signal processing

[0085] The emergency signal is the highest priority signal. When any vehicle triggers the emergency, it continuously sends all 1s to the bus. This signal will cover all other signals. At this time, all reconnected vehicles will receive this signal, so that the whole train applies the emergency.

[0086] 4) Transmission line detection

[0087] Each vehicle has a signal output interface and a signal input interface connected to the reconnection line, which can support multiple vehicles for reconnection. When the input and output devices fail or the transmission line is abnormal due to grounding, short circuit, open circuit, interference, etc., in addition to CRC checking, other methods can also be used for identification.

[0088] Example 2

[0089] The embodiment of the present application also provides a locomotive hard-wire reconnection signal safety transmission system, which comprises a memory and one or more processors; the memory stores one or more programs, and when the one or more programs are executed by the one or more processors, the one or more processors implement the steps of the locomotive hard-wire reconnection signal safety transmission method provided by the above embodiment.

[0090] The locomotive hard-wire reconnection signal safety transmission system provided by the embodiment can implement the steps of the locomotive hard-wire reconnection signal safety transmission method provided by the above embodiment by processing the transmission program stored in the memory by the processor, and therefore has the same practical effects as the locomotive hard-wire reconnection signal safety transmission method.

[0091] Embodiment 3

[0092] The embodiment of the present application also provides a reconnection locomotive comprising a reconnection locomotive body and any of the locomotive hard-wire reconnection signal safety transmission systems, and since the reconnection locomotive is provided with any of the locomotive hard-wire reconnection signal safety transmission systems, the reconnection locomotive has the same practical effects as the locomotive hard-wire reconnection signal safety transmission system.

[0093] Embodiment 4

[0094] The locomotive hard-wire reconnection signal safety transmission method provided by the above embodiment has been applied to a certain engineering vehicle in batches. The vehicle uses five hard wires to transmit reconnection control signals, including emergency signals, a total of 32 control signals, including level signals (such as power supply mode) and pulse signals (such as trolley key signal), and adopts a priority sending method, and the signals are sorted from high to low according to the importance. After the vehicle is occupied, the master control vehicle automatically sends all triggered reconnection control signals to the reconnection hard wire, and the vehicle traction is blocked, and the prompt "traction blocked: hard-wire reconnection signal is initializing!" is displayed. When the master control vehicle receives the CRC check code and the check is successful, and there is no CRC error signal triggered on the reconnection hard wire, the blocking condition and the prompt are cancelled, and the vehicle can normally run. When the master vehicle and the slave vehicle receive the CRC check error, the traction blocking is triggered, and the master vehicle sends all triggered reconnection control signals again, and the master and slave vehicles are automatically unblocked after the CRC check is passed. Therefore, after the vehicle is occupied, the driver does not need to perform other operations, and the transmission of the reconnection signal is automatically completed by the locomotive hard-wire reconnection signal safety transmission system provided by the above embodiment, and the vehicle is automatically protected and the signal is automatically reset when the signal transmission is incorrect.

[0095] The above embodiments should be understood as being used only for more clearly illustrating the present application, and should not be used for limiting the scope of the present application, and after reading the present application, various equivalent modifications of the present embodiments made by those skilled in the art all fall within the scope defined by the claims of the present application.

Claims

1. A method for locomotive hard-wire re-union signal safety transmission, characterized in that, The transmission method comprises: Step 1), presetting the correspondence between the codes and the signals; the signals comprise reconnection control signals, check signals, check error signals and emergency signals; The number of the hard wires N is determined based on the number of the reconnection control signals, so that one N-bit binary number corresponds to one code, and one N-bit binary number and signal duration correspond to one signal; wherein N is a positive integer; Step 2), the locomotive transmits a target signal through the hard wires, the target signal corresponds to a target N-bit binary number and the signal duration; Wherein, when the target signal is the reconnection control signal, the pending state of the reconnection control signal is obtained, and it is judged whether the reconnection control signal needs to be sent: if the pending state of the reconnection control signal is pending, the corresponding target code is sent, and the pending state of the reconnection control signal is reset to sent, and when the reconnection control signal is sent or the pending state of the reconnection control signal is sent, the pending state of the next target signal is read; Wherein, the locomotive comprises a master vehicle and a slave vehicle; The step 2) that the locomotive transmits a target signal through the hard wires specifically comprises: Step 2.1), the master vehicle transmits the reconnection control signal to the locomotive through N hard wires according to the current pending state of the reconnection control signal; Step 2.2), the locomotive receives the reconnection control signal through N hard wires, and the locomotive stores the reconnection control signal as a target reconnection control signal; Step 2.3), after all the reconnection control signals are sent, the master vehicle sends the check signal to the locomotive through N hard wires; Step 2.4), the locomotive receives the check signal through N hard wires, and checks the target reconnection control signal; Step 2.5), when the locomotive passes the check of the target reconnection control signal, the locomotive outputs the target reconnection control signal through N hard wires; Step 2.6), when the locomotive fails to pass the check of the target reconnection control signal, the locomotive feeds back the check error signal to the master vehicle through N hard wires, and the locomotive clears the target reconnection control signal; Step 2.7), when the master vehicle receives the check error signal through N hard wires, the locomotive is blocked, the pending state of the reconnection control signal is reset to pending, and the reconnection control signal is retransmitted to the locomotive through N hard wires; The signal further comprises an idle signal, and the step 2) that the locomotive transmits a target signal through the hard wires specifically further comprises: Step 2.8), when the target signal is the idle signal, the master vehicle sends the check signal to the locomotive through the N hard wires every first time interval, and the locomotive sends the check error signal if the check signal is not received within a second time interval; Step 2.9), when the target signal is the emergency signal, the locomotive processes the emergency signal preferentially; The check signal is a CRC signal, and the check error signal is a CRC error signal.

2. The locomotive hard-wired rekeying signal safety transmission method as recited in claim 1, wherein, The step 2) includes: When the target signal is the reconnection control signal, the step of obtaining the to-be-sent state of the reconnection control signal specifically includes: When the reconnection control signal is triggered, the state of the reconnection control signal changes from 0 to 1, and the to-be-sent state of the reconnection control signal is set to to-be-sent; When the state of the reconnection control signal is 0, the to-be-sent state of the reconnection control signal is reset to sent; When a CRC error signal is received, the to-be-sent state of all the reconnection control signals is set to to-be-sent; 3. The locomotive hard-wire marshall signal safety transmission method of claim 1, wherein, The reconnection control signal is subjected to the setting and resetting processes to obtain the to-be-sent state of the reconnection control signal. The next target signal is a reconnection control signal with the highest priority or an adjacent reconnection control signal.

4. The locomotive hard-wire reconnection signal safety transmission method according to claim 1, characterized in that, In the step 2.1), the host vehicle transmits the reconnection control signal to the locomotive through N hard wires, and the locomotive is traction-locked; In the step 2.5), when the locomotive passes the verification of the target reconnection control signal, the locomotive is traction-unlocked, and the locomotive outputs the target reconnection control signal through N hard wires; 5. A locomotive hard-wire consists signal safety transmission system, characterized in that, In the step 2.7), when the host vehicle receives the verification error signal through N hard wires, the locomotive is traction-locked, the to-be-sent state of the reconnection control signal is reset to to-be-sent, and the reconnection control signal is retransmitted to the locomotive through N hard wires.

6. A consist of locomotives, comprising a consist of locomotive bodies, characterized in that, The system includes a memory and one or more processors; the memory stores one or more programs, and when the one or more programs are executed by the one or more processors, the one or more processors implement the steps of the method of any one of claims 1-4. The system also includes the locomotive hard-wire reconnection signal safety transmission system of claim 5.

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