Communication device applied to axle counter and axle counter communication system

By introducing a verification mechanism in the axle counting communication system, the accuracy of the segment occupation result information is ensured, and the safety hazards caused by data transmission errors in the prior art are solved, and the safety of railway operations is improved.

CN111591316BActive Publication Date: 2025-06-10CRSC (XI AN) RAIL TRANSIT IND GRP CO LTD BEIJING BRANCH
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Patent Information

Application Number
CN202010455909.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-05-26
Publication Date
2025-06-10
Estimated Expiration
2040-05-26

AI Technical Summary

Technical Problem

In the communication between the existing axis count and interlock, there is a lack of verification of the transmitted data, which causes the interlock to receive incorrect segment occupation results, which poses a safety hazard.

Method used

A communication device applied to axle counter is designed, including a collection unit, a processing unit and a verification unit. The processing unit identifies and stores the collected segment occupancy result signal. The verification unit ensures the accuracy of the output segment occupancy result information by comparing the verification segment information with the output segment information.

Benefits of technology

By verifying the section occupation result information, the accuracy of the data received by the interlock is ensured, and the safety of driving and shunting operations at railway stations is improved.

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Abstract

Embodiments of the present application disclose a communication device applied to axle counters and an axle counter communication system. The device includes: an acquisition unit for acquiring and sending the section occupancy result signal output by the axle counter; a plurality of processing units, each processing unit being used to identify the section occupancy result signal to obtain the corresponding section occupancy result information, and storing part of the information in the section occupancy result information; a verification unit for verifying whether the verification fragment information stored by the processing unit is the same as the output fragment information stored by the corresponding processing unit; when the comparison fragment information stored by each processing unit is the same as the output fragment information stored by the corresponding processing unit, combining all the output fragment information into complete section occupancy result information and outputting it. In the present application, the verification unit ensures the accuracy of the complete section occupancy result information output, so that the interlocking device can obtain accurate section occupancy result information.
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Description

Technical Field

[0001] This application relates to the field of electronic circuit technologies, and in particular, to a communication device for axle counting and an axle counting communication system. Background Art

[0002] Axle counting is a railway signal device that can detect the passing wheels. By detecting the number of wheels passing through a railway section, it can identify whether a train occupies the section and send the identification result of whether the section is occupied to the interlocking. The interlocking ensures the safety of train operation and shunting operation in a railway station based on the identification result of whether the section is occupied.

[0003] In the prior art, axle counting usually establishes communication with the interlocking through network communication. After the axle counting acquires the identification result of whether the section is occupied, it directly transmits the identification result to the interlocking. In the existing communication method between the axle counting and the interlocking, since there is no process of verifying the transmitted data during the process of the axle counting transmitting the identification result to the interlocking, the identification result obtained by the interlocking may be incorrect, and there are potential safety hazards when the interlocking executes train operation and shunting operation in a railway station. Summary of the Invention

[0004] Based on the above deficiencies of the prior art, this application proposes a communication device for axle counting and an axle counting communication system to improve the safety when the interlocking executes train operation and shunting operation in a railway station by verifying the section occupancy result information.

[0005] To solve the above problems, the following solutions are proposed:

[0006] The first aspect of the embodiments of this application discloses a communication device for axle counting, including:

[0007] An acquisition unit connected to the axle counting, configured to acquire and send the section occupancy result signal output by the axle counting;

[0008] A plurality of processing units connected to the acquisition unit, each processing unit is configured to identify the section occupancy result signal sent by the acquisition unit to obtain the corresponding section occupancy result information, and store part of the information in the section occupancy result information; wherein, the part of the information stored by the processing unit includes: a verification segment information and an output segment information; for each processing unit, there is a corresponding processing unit, and the position of the verification segment information stored by the processing unit in the section occupancy result information is the same as the position of the output segment information stored by the corresponding processing unit in the section occupancy result information; the output segment information stored by all the processing units combines to obtain the complete section occupancy result information;

[0009] A verification unit connected to each of the processing units, configured to extract partial information from the section occupancy result information stored in each of the processing units, and for each of the processing units, verify whether the verification fragment information stored in the processing unit is the same as the output fragment information stored in the corresponding processing unit; when the comparison fragment information stored in each of the processing units is the same as the output fragment information stored in the corresponding processing unit, combine the output fragment information stored in all the processing units into complete section occupancy result information and output it.

[0010] Optionally, in the above communication device applied to axle counter, the section occupancy result signal output by the axle counter is a high-level signal, indicating that the section corresponding to the section occupancy result signal is in an idle state; the occupancy result information output by the axle counter is a low-level signal, indicating that the section corresponding to the occupancy result information is in an occupied state;

[0011] Alternatively, the section occupancy result signal output by the axle counter is a low-level signal, indicating that the section corresponding to the section occupancy result signal is in an idle state; the occupancy result information output by the axle counter is a high-level signal, indicating that the section corresponding to the occupancy result information is in an occupied state.

[0012] Optionally, in the above communication device applied to axle counter, the processing unit includes: a central processing unit; wherein, the storage chip in the central processing unit is used to store partial information in the section occupancy result information.

[0013] Optionally, in the above communication device applied to axle counter, the verification unit includes: a field programmable gate array FPGA.

[0014] Optionally, in the above communication device applied to axle counter, the acquisition unit includes:

[0015] Multiple optocouplers; wherein, the diodes in the multiple optocouplers are connected in series to form an optocoupler input branch; the input end of the optocoupler input branch receives the section occupancy result signal output by the axle counter, and the output end of the optocoupler input branch is grounded; for each of the optocouplers, the first end of the triode in the optocoupler receives a first power signal, the second end of the triode in the optocoupler is connected to one of the multiple processing units, and each optocoupler is connected to a different processing unit.

[0016] Optionally, in the above communication device applied to axle counter, the acquisition unit further includes:

[0017] A current limiting resistor, one end of the current limiting resistor is connected to the negative electrode of the transient diode, and the other end is connected to the input end of the optocoupler input branch;

[0018] The transient diode, with the positive electrode of the transient diode grounded.

[0019] Optionally, in the communication device applied to axle counter as described above, after the verification unit combines the output segment information stored by all the processing units into complete section occupancy result information and outputs it, it is further used for:

[0020] Sending the output complete section occupancy result information to the interlocking device.

[0021] A second aspect of the present application discloses an axle counter communication system, including:

[0022] The axle counter, used to generate and output a section occupancy result signal;

[0023] A communication device applied to axle counter as described in any one of the first aspects above, connected to the axle counter.

[0024] Optionally, in the above axle counter communication system, the axle counter includes:

[0025] A relay, the control end of the relay receives a control signal, the first end of the relay receives a second power signal, and the second end of the relay outputs the section occupancy result signal; wherein, the control signal is used to control the relay to close when the section corresponding to the relay is in an idle state, and to control the relay to open when the corresponding section is in an occupied state; or, to control the relay to open when the section corresponding to the relay is in an idle state, and to control the relay to close when the corresponding section is in an occupied state.

[0026] Optionally, in the above axle counter communication system, the control signal is generated based on the wheel number information collected by the axle counter.

[0027] As can be seen from the above technical solution, in the communication device applied to axle counting proposed in the embodiment of the present application, since each processing unit identifies the section occupancy result signal sent by the acquisition unit, the corresponding section occupancy result information can be obtained, and part of the information in the section occupancy result information is stored. Among them, the part of the information stored by the processing unit includes: verification fragment information and output fragment information. For each processing unit, there is a corresponding processing unit. The position of the verification fragment information stored by the processing unit in the section occupancy result information is the same as that of the output fragment information stored by the corresponding processing unit. Therefore, the verification unit can extract part of the information in the section occupancy result information stored by each processing unit, and for each processing unit, verify whether the comparison fragment information stored by the processing unit is the same as the output fragment information stored by the corresponding processing unit. Only when the comparison fragment information stored by each processing unit is the same as the output fragment information stored by the corresponding processing unit, the output fragment information stored by all processing units is combined into complete section occupancy result information and output, ensuring the accuracy of the output complete section occupancy result information, enabling the interlocking device to obtain accurate section occupancy result information, and ensuring the safety of train operation and shunting operation in railway stations. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0029] Figure 1 FIG. is a schematic structural diagram of an axle counting communication system proposed in an embodiment of the present application;

[0030] Figure 2 FIG. is a schematic structural diagram of another axle counting communication system proposed in an embodiment of the present application;

[0031] Figure 3 FIG. is a schematic structural diagram of a communication device applied to axle counting proposed in an embodiment of the present application;

[0032] Figure 4 FIG. is a schematic diagram of railway section division;

[0033] Figure 5 FIG. is a schematic diagram of a processing unit storing section occupancy result information proposed in an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] Referring to Figure 1 , an axle counter communication system 100 is disclosed in an embodiment of the present application, including: an axle counter 101 and a communication device 102 applied to the axle counter.

[0036] In the axle counter communication system 100, the axle counter 101 generates and outputs a section occupancy result signal, and outputs the section occupancy result signal to the communication device 102 applied to the axle counter and connected to the axle counter 101.

[0037] Optionally, referring to Figure 2 , in a specific embodiment of the present application, the axle counter includes a relay. The control end of the relay receives a control signal Q1, and the control signal can control the on / off of the relay. The first end of the relay receives a second power supply signal V2, and the second end of the relay outputs a section occupancy result signal Q2. When the section corresponding to the relay is in an idle state, the control signal Q1 controls the relay to close. At this time, the second end of the relay can receive the second power supply signal V2, that is, the section occupancy result signal Q2 output by the second end of the relay is a high-level signal. The control signal Q1 also controls the relay to open when the corresponding section is in an occupied state. At this time, the section occupancy result signal Q2 output by the second end of the relay is a low-level signal. Optionally, when the section corresponding to the relay is in an idle state, the control signal Q1 controls the relay to open. At this time, the second end of the relay does not receive the second power supply signal V2, that is, the section occupancy result signal Q2 output by the second end of the relay is a low-level signal. The control signal Q1 also controls the relay to close when the corresponding section is in an occupied state. At this time, the second end of the relay receives the second power supply signal V2, and the output section occupancy result signal Q2 is a high-level signal.

[0038] Optionally, in a specific embodiment of the present application, the control signal is generated according to the wheel number information collected by the axle counter 101. The axle counter sensor in the axle counter 101 can count the number of wheels passing through the section corresponding to the axle counter 101. When the number of wheels entering the section corresponding to the axle counter 101 is equal to the number of wheels leaving the section corresponding to the axle counter 101, it indicates that the section where the axle counter 101 is located is in an idle state. When the number of wheels entering the section corresponding to the axle counter 101 is not equal to the number of wheels leaving the section corresponding to the axle counter 101, it indicates that the section where the axle counter 101 is located is in an occupied state. The axle counter 101 then generates a corresponding control signal according to the section occupancy result to control the on / off of the relay.

[0039] In the communication device 102 applied to axle counters, the acquisition unit connected to the axle counter 101 acquires the section occupancy result signal output by the axle counter 101 and sends it to multiple processing units respectively. After each processing unit receives the section occupancy result signal, it will identify the section occupancy result signal to obtain the corresponding section occupancy result information, and store some information in the section occupancy result information. Among them, the partial information stored by the processing unit includes: check fragment information and output fragment information. For each processing unit, there is a corresponding processing unit. The position of the check fragment information stored by the processing unit in the section occupancy result information is the same as the position of the output fragment information stored by the corresponding processing unit in the section occupancy result information. The output fragment information stored by all the processing units is combined to obtain the complete section occupancy result information. The verification unit extracts some information from the section occupancy result information stored by each processing unit, and for each processing unit, verifies whether the check fragment information stored by the processing unit is the same as the output fragment information stored by the corresponding processing unit. When the comparison fragment information stored by each processing unit is the same as the output fragment information stored by the corresponding processing unit, the output fragment information stored by all the processing units is combined into the complete section occupancy result information and output.

[0040] It should be noted that in practical applications, the number of axle counters 101 in the axle counter communication system 100 can be multiple, and the number of acquisition units, processing units, and verification units in the communication device 102 applied to axle counters can also be multiple. The number of various units and devices in the axle counter communication system 100 can be adjusted according to the actual situation.

[0041] In the axle counter communication system 100 disclosed in the embodiments of the present application, since each processing unit in the communication device 102 applied to the axle counter identifies the section occupancy result signal sent by the acquisition unit, corresponding section occupancy result information can be obtained, and part of the information in the section occupancy result information is stored. And for each processing unit, there is a corresponding processing unit. The position of the check fragment information stored in the processing unit in the section occupancy result information is the same as that of the output fragment information stored in the corresponding processing unit. Therefore, the check unit can extract part of the information in the section occupancy result information stored in each processing unit, and for each processing unit, check whether the comparison fragment information stored in the processing unit is the same as the output fragment information stored in the corresponding processing unit. Only when the comparison fragment information stored in each processing unit is the same as the output fragment information stored in the corresponding processing unit, the output fragment information stored in all processing units is combined into complete section occupancy result information and output, ensuring the accuracy of the output complete section occupancy result information, enabling the interlocking device to obtain accurate section occupancy result information, and ensuring the safety of train operation and shunting operation in railway stations.

[0042] Specifically, the communication device applied to the axle counter will be described below through several embodiments.

[0043] Refer to Figure 3 , the embodiments of the present application disclose a communication device 300 applied to the axle counter. In the communication device 300, it includes: an acquisition unit 301, a processing unit 302, and a verification unit 303.

[0044] The acquisition unit 301 connected to the axle counter is used to collect the section occupancy result signal output by the axle counter and send it.

[0045] Among them, the section occupancy result signal is used to indicate whether the section where the axle counter is located is in an occupied state. A section refers to a section of railway. Specifically, refer to Figure 4 , in practical applications, each interval (between two stations) of the railway can be divided into several track sections such as section 1 and section 2. The interlocking identifies whether a certain section of the railway is in an occupied state according to the section occupancy result, and then conducts train operation and shunting operation in the railway station.

[0046] After the acquisition unit 301 collects the section occupancy result signal output by the axle counter, it sends it to multiple processing units 302 respectively, so that each processing unit 302 can obtain the section occupancy result signal output by the axle counter. Each acquisition unit can be only used to collect the section occupancy result signal of a single section.

[0047] Optionally, in a specific embodiment of the present application, the section occupancy result signal can indicate whether the section is in an occupied state through high and low level states. Specifically, if the section occupancy result signal output by the axle counter is a high-level signal, it indicates that the section corresponding to the section occupancy result signal is in an idle state. If the occupancy result information output by the axle counter is a low-level signal, it indicates that the section corresponding to the section occupancy result information is in an occupied state. Or, if the section occupancy result signal output by the axle counter is a low-level signal, it indicates that the section corresponding to the section occupancy result signal is in an idle state, and if the occupancy result information output by the axle counter is a high-level signal, it indicates that the section corresponding to the section occupancy result information is in an occupied state.

[0048] Optionally, referring to Figure 2 , in a specific embodiment of the present application, the acquisition unit 201 includes:

[0049] Multiple optocouplers. Among them, the diodes in the multiple optocouplers are connected in series to form an optocoupler input branch. The input end of the optocoupler input branch receives the section occupancy result signal Q2 output by the axle counter, and the output end of the optocoupler input branch is grounded to GND. For each optocoupler, the first end of the triode in the optocoupler receives the first power supply signal V1, the second end of the triode in the optocoupler is connected to one of the multiple processing units 202, and each processing unit 202 connected to the optocoupler is different. For each optocoupler, the section occupancy result signal Q2 output by the axle counter is transmitted to the processing unit 202 connected to the optocoupler through the optocoupler, thereby realizing the transmission of one section occupancy result signal Q2 to multiple processing units 202 respectively. When the section occupancy result signals of multiple sections need to be transmitted, there are corresponding multiple acquisition units 201, and each acquisition unit 201 acquires and sends the section occupancy result signal of only one section.

[0050] Optionally, continue to refer to Figure 2 , the acquisition unit 201 further includes:

[0051] A current-limiting resistor, one end of the current-limiting resistor is connected to the negative pole of a Transient Voltage Suppressor (TVS), and the other end is connected to the input end of the optocoupler input branch. The positive pole of the TVS is grounded to GND, and the negative pole is connected to one end of the current-limiting resistor. The TVS can quickly introduce the voltage to the ground end when there is voltage interference (lightning strike) in the external environment, protect the optocoupler, and at the same time ensure that the section occupancy result signal Q2 can be transmitted to multiple optocouplers respectively. The current-limiting resistor is used to prevent the current from being too large and burning out the optocoupler.

[0052] Referring to Figure 3, a plurality of processing units 302 connected to the acquisition unit 301, each processing unit 302 is configured to identify the section occupancy result signal sent by the acquisition unit 301 to obtain the corresponding section occupancy result information, and store some of the information in the section occupancy result information.

[0053] Among them, the partial information stored by the processing unit 302 includes: verification fragment information and output fragment information. For each processing unit 302, there is a corresponding processing unit 302. The position of the verification fragment information stored by the processing unit 302 in the section occupancy result information is the same as the position of the output fragment information stored by the corresponding processing unit in the section occupancy result information. The output fragment information stored by all the processing units 302 is combined to obtain the complete section occupancy result information.

[0054] Specifically, the verification fragment information is mainly used for verification, and the output fragment information is used for output when the verification is successful. The verification fragment information stored by each processing unit 302 is unique, and the output fragment information stored by each processing unit 302 is also unique. After each processing unit 302 identifies the section occupancy result signal sent by the acquisition unit 301, it obtains the corresponding section occupancy result information and stores some of the information in the section occupancy result information. That is, the processing unit 302 converts the section occupancy result signal into section occupancy result information. In addition to carrying the section occupancy result, the section occupancy result information also carries the information of the section corresponding to the section occupancy result. Optionally, the section occupancy result information also carries information that can reflect whether the section occupancy result information is valid, etc.

[0055] Refer to Figure 5, for example, the section occupancy result information is divided into segment 1, segment 2, segment 3, and segment 4. The first processing unit stores segment 1 and segment 4 in the section occupancy result information, where segment 4 is the output segment information of the first processing unit, and segment 1 is the verification segment information of the first processing unit. The second processing unit stores segment 1 and segment 2 in the section occupancy result information, where segment 1 is the output segment information of the second processing unit, and segment 2 is the verification segment information of the second processing unit. The third processing unit stores segment 2 and segment 3 in the section occupancy result information, where segment 2 is the output segment information of the third processing unit, and segment 3 is the verification segment information of the third processing unit. The fourth processing unit stores segment 3 and segment 4 in the section occupancy result information, where segment 3 is the output segment information of the fourth processing unit, and segment 4 is the verification segment information of the fourth processing unit. Corresponding to the first processing unit is the second processing unit, corresponding to the second processing unit is the third processing unit, corresponding to the third processing unit is the fourth processing unit, and corresponding to the fourth processing unit is the first processing unit.

[0056] Optionally, in a specific embodiment of the present application, for each processing unit, the processing unit may receive multiple different section occupancy result signals. Among them, the section occupancy result signals received by all processing units are the same. For example, referring to Figure 2 , Figure 2 in the axle counter communication system shown, there are relay 1 and relay 2. Relay 1 outputs the section occupancy result signal of the first section, and relay 2 outputs the section occupancy result signal of the second section. Relay 1 transmits the section occupancy result signal of the first section to 4 processing units 202 respectively through the acquisition unit 201 connected to relay 1, and relay 2 transmits the section occupancy result signal of the second section to 4 processing units 202 respectively through the acquisition unit 201 connected to relay 2.

[0057] Optionally, continuing to refer to Figure 2 , in a specific embodiment of the present application, the processing unit 202 may include: a central processing unit (CPU). Optionally, there may also be a storage chip in the central processing unit, such as a Flash chip, so that the central processing unit can store some information of the section occupancy result information in the storage chip.

[0058] Referring to Figure 3, a verification unit 303 connected to each processing unit 302 respectively, is used to extract partial information from the section occupancy result information stored in each processing unit 302, and for each processing unit 302, verify whether the verification fragment information stored in the processing unit 302 is the same as the output fragment information stored in the corresponding processing unit 302. When the comparison fragment information stored in each processing unit 302 is the same as the output fragment information stored in the corresponding processing unit 302, the output fragment information stored in all the processing units 302 is combined into complete section occupancy result information and output.

[0059] For example, referring to Figure 5 , the verification unit needs to verify whether fragment 1 in the first processing unit is the same as fragment 1 in the second processing unit, whether fragment 2 in the second processing unit is the same as fragment 2 in the third processing unit, whether fragment 3 in the third processing unit is the same as fragment 3 in the fourth processing unit, and whether fragment 4 in the fourth processing unit is the same as fragment 4 in the first processing unit. When the verification fragments of all processing units are the same as the output fragments of the corresponding processing units, the verification unit extracts fragment 1 of the first processing unit, fragment 2 of the second processing unit, fragment 3 of the third processing unit, and fragment 4 of the fourth processing unit, combines them into complete section occupancy result information and outputs it.

[0060] Optionally, continuing to refer to Figure 2 , in a specific embodiment of the present application, the verification unit 203 may include: a Field Programmable Gate Array (FPGA).

[0061] Optionally, continuing to refer to Figure 2 , in a specific embodiment of the present application, the verification unit may also be used to send the output complete section occupancy result information to the interlocking device.

[0062] Since the complete section occupancy result information received by the interlocking device has been verified by the verification unit, the accuracy of the section occupancy result information can be ensured, making the interlocking more secure when performing train operation and shunting operation at a railway station.

[0063] Optionally, during the verification process of the verification unit, if there is an inconsistency between the verification fragment of a processing unit and the output fragment of the corresponding processing unit, the verification unit will not send the section occupancy result information to the interlocking, can send an alarm message for reminder, and can also cause the acquisition unit to re-acquire the axle counter section occupancy result signal, cause the processing unit to re-store partial information in the section occupancy result information, and the verification unit performs another verification.

[0064] In the embodiments of the present application, each processing unit stores only partial information of the section occupancy result information system, and there is a corresponding processing unit for each processing unit, such that the position of the check fragment information stored in the processing unit and the output fragment information stored in the corresponding processing unit in the section occupancy result information is the same. Therefore, if there is no error in the transmission of the section occupancy result information stored in all processing units, then the comparison fragment information stored in each processing unit is the same as the output fragment information stored in the corresponding processing unit. By means of pairwise comparison between multiple processing units, the accuracy of the section occupancy result information is ensured. Moreover, since each processing unit stores only partial information of the section occupancy result information, the requirement of the processing unit for storage space is also reduced.

[0065] In the communication device applied to axle counting proposed in the embodiments of the present application, since each processing unit identifies the section occupancy result signal sent by the acquisition unit, the corresponding section occupancy result information can be obtained, and partial information in the section occupancy result information is stored. Among them, the partial information stored by the processing unit includes: check fragment information and output fragment information. For each processing unit, there is a processing unit corresponding to the processing unit. The position of the check fragment information stored in the processing unit corresponding to the position of the output fragment information stored in the corresponding processing unit in the section occupancy result information is the same. Therefore, the check unit can extract partial information in the section occupancy result information stored in each processing unit, and for each processing unit, check whether the comparison fragment information stored in the processing unit is the same as the output fragment information stored in the corresponding processing unit. Only when the comparison fragment information stored in each processing unit is the same as the output fragment information stored in the corresponding processing unit, the output fragment information stored in all processing units is combined into complete section occupancy result information and output, ensuring the accuracy of the output complete section occupancy result information, enabling the interlocking device to obtain accurate section occupancy result information, and ensuring the safety of train operation and shunting operation in railway stations.

[0066] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0067] It should also be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent in such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

Claims

1. A communication device applied to axle counters, characterized in that, it includes: An acquisition unit connected to the axle counter, configured to acquire and send the section occupancy result signal output by the axle counter; A plurality of processing units connected to the acquisition unit, each processing unit is configured to identify the section occupancy result signal sent by the acquisition unit to obtain corresponding section occupancy result information, and store some information in the section occupancy result information; wherein, the part of the information stored by the processing unit includes: verification fragment information and output fragment information; for each processing unit, there is a corresponding processing unit, and the position of the verification fragment information stored by the processing unit in the section occupancy result information is the same as the position of the output fragment information stored by the corresponding processing unit in the section occupancy result information; the output fragment information stored by all the processing units is combined to obtain the complete section occupancy result information; the processing unit includes: a central processing unit; wherein, the storage chip in the central processing unit is used to store some information in the section occupancy result information; A verification unit respectively connected to each processing unit, configured to extract some information in the section occupancy result information stored by each processing unit, and for each processing unit, verify whether the verification fragment information stored by the processing unit is the same as the output fragment information stored by the corresponding processing unit; when the verification fragment information stored by each processing unit is the same as the output fragment information stored by the corresponding processing unit, combine the output fragment information stored by all the processing units into the complete section occupancy result information and output it; the verification unit includes: a field programmable gate array FPGA; The acquisition unit includes: a plurality of optocouplers; wherein, the diodes in the plurality of optocouplers are connected in series to form an optocoupler input branch; the input end of the optocoupler input branch receives the section occupancy result signal output by the axle counter, and the output end of the optocoupler input branch is grounded; for each optocoupler, the first end of the triode in the optocoupler receives a first power signal, the second end of the triode in the optocoupler is connected to one of the plurality of processing units, and each optocoupler is connected to a different processing unit.

2. The device according to claim 1, characterized in that, When the section occupancy result signal output by the axle counter is a high-level signal, it indicates that the section corresponding to the section occupancy result signal is in an idle state; when the occupancy result information output by the axle counter is a low-level signal, it indicates that the section corresponding to the section occupancy result information is in an occupied state; Or, when the section occupancy result signal output by the axle counter is a low-level signal, it indicates that the section corresponding to the section occupancy result signal is in an idle state; When the occupancy result information output by the axle counter is a high-level signal, it indicates that the section corresponding to the section occupancy result information is in an occupied state.

3. The device according to claim 1, characterized in that, The acquisition unit further includes: A current-limiting resistor, one end of the current-limiting resistor is connected to the negative electrode of the transient diode, and the other end is connected to the input end of the optocoupler input branch; The transient diode, the positive electrode of the transient diode is grounded.

4. The device according to claim 1, characterized in that after the verification unit combines the output segment information stored by all the processing units into complete section occupancy result information and outputs it, it is further used for: sending the output complete section occupancy result information to the interlocking device.

5. An axle counter communication system, characterized in that it includes: The axle counter is used to generate and output a section occupancy result signal; A communication device applied to the axle counter as described in any one of claims 1 to 4 and connected to the axle counter.

6. The system according to claim 5, characterized in that The axle counter includes: A relay, the control end of the relay receives a control signal, the first end of the relay receives a second power signal, and the second end of the relay outputs the section occupancy result signal; wherein, the control signal is used to control the relay to close when the section corresponding to the relay is in an idle state, and to control the relay to open when the corresponding section is in an occupied state; or, to control the relay to open when the section corresponding to the relay is in an idle state, and to control the relay to close when the corresponding section is in an occupied state.

7. The system according to claim 6, characterized in that The control signal is generated based on the wheel number information collected by the axle counter.

Citation Information

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