CN110793563A - Running state detection method of wheel sensor - Google Patents
Running state detection method of wheel sensor Download PDFInfo
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- CN110793563A CN110793563A CN201911096063.0A CN201911096063A CN110793563A CN 110793563 A CN110793563 A CN 110793563A CN 201911096063 A CN201911096063 A CN 201911096063A CN 110793563 A CN110793563 A CN 110793563A
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- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P21/00—Testing or calibrating of apparatus or devices covered by the preceding groups
Abstract
The embodiment of the invention discloses a method for detecting the running state of a wheel sensor, which comprises the following steps: acquiring real-time voltage data of each wheel sensor, and determining the idle/occupied state of each wheel sensor based on the real-time voltage data of each wheel sensor; and determining the running state of each wheel sensor based on the real-time voltage data of each wheel sensor, the idle/occupied state of each wheel sensor and the preset voltage maximum value corresponding to the idle state and the occupied state. The invention can effectively improve the train operation capacity.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a running state detection method of a wheel sensor.
Background
As an important transportation mode, rail transit is adopted, and more passengers are traveling by selecting a rail transit mode (such as a train). In order to improve the operation capacity of the train, it becomes important to monitor the idle/occupied status of each section.
At present, an axle counting system is usually adopted to monitor the idle/occupied status of each zone. Specifically, when a train wheel passes through a section, each wheel sensor in the section can generate a wheel axle signal, and the generated wheel axle signal can be transmitted to the amplifying plate. The amplification board can then process the axle signal to obtain an axle pulse, which is sent to the axle counting board and the output board. And then, the axle counting plate can judge the running direction of the train, compare the number of the axles counted in and counted out in the section, determine the occupied or idle state of the section and send the occupied or idle state to the output plate. And then, the output board can determine the idle/occupied state of the section according to the data sent by the axle counting board and the amplifying board, and store the wheel axle pulses of all the wheel sensors, so that a technician can check the idle/occupied state of the section, and can sequentially judge the running state (such as a fault state or a normal state) of each wheel sensor according to the wheel axle pulses of each wheel sensor, so as to maintain the wheel sensor in the fault state according to the judgment result.
In the prior art, technicians are required to judge the running state of each wheel sensor according to wheel axle pulses of each wheel sensor, so that the maintenance time of the wheel sensors can be prolonged to a certain extent, and the operation capacity of a train is further influenced.
Disclosure of Invention
Since the conventional method has the above problems, an embodiment of the present invention provides an operation state detection method for a wheel sensor, including:
acquiring real-time voltage data of each wheel sensor, and determining the idle/occupied state of each wheel sensor based on the real-time voltage data of each wheel sensor;
and determining the running state of each wheel sensor based on the real-time voltage data of each wheel sensor, the idle/occupied state of each wheel sensor and the preset voltage maximum value corresponding to the idle state and the occupied state.
Optionally, the maximum preset voltage value corresponding to the idle state includes a preset minimum idle voltage and a preset maximum idle voltage;
the preset voltage maximum value corresponding to the occupation state comprises a preset minimum occupation voltage and a preset maximum occupation voltage;
the operating states of the wheel sensors include at least a fault state and a normal state.
Optionally, the determining the operating state of each wheel sensor based on the real-time voltage data of each wheel sensor, the idle/occupied state of each wheel sensor, and the preset voltage maximum value corresponding to the idle state and the occupied state includes:
if the current wheel sensor is in an idle state, acquiring the preset minimum idle voltage corresponding to the idle state;
judging whether the real-time voltage data of the current wheel sensor is smaller than the preset minimum idle voltage or not;
and if the current wheel sensor is smaller than the preset minimum idle voltage, determining that the current wheel sensor is in a fault state.
Optionally, the determining the operating state of each wheel sensor based on the real-time voltage data of each wheel sensor, the idle/occupied state of each wheel sensor, and the preset voltage maximum value corresponding to the idle state and the occupied state includes:
if the current wheel sensor is in an occupied state, acquiring the preset maximum occupied voltage corresponding to the occupied state;
judging whether the real-time voltage data of the current wheel sensor is larger than the preset maximum occupied voltage or not;
and if the current wheel sensor is larger than the preset maximum occupation voltage, determining that the current wheel sensor is in a fault state.
Optionally, the determining whether the real-time voltage data of the current wheel sensor is smaller than the preset idle minimum voltage further includes:
if the idle voltage is larger than the preset minimum idle voltage, acquiring the preset maximum idle voltage corresponding to the idle state and the preset minimum occupied voltage corresponding to the occupied state;
judging whether the real-time voltage data of the current wheel sensor is larger than the preset maximum idle voltage and smaller than the preset minimum occupied voltage or not;
if yes, historical voltage data of the current wheel sensor is obtained, and based on the real-time voltage data of the current wheel sensor and the historical voltage data of the current wheel sensor, the voltage data of the current wheel sensor is determined to be larger than the preset maximum idle voltage and smaller than the duration of the preset minimum occupied voltage.
Optionally, after determining that the voltage data of the current wheel sensor is greater than the preset maximum idle voltage and less than the duration of the preset minimum occupancy voltage, the method further includes:
judging whether the duration is greater than a preset allowable duration or not;
and if the current wheel sensor is greater than the preset allowable time length, determining that the current wheel sensor is in a fault state.
Optionally, after determining that the current operating state of the wheel sensor is a fault state, the method further includes:
acquiring all preset fault types and voltage data ranges corresponding to the preset fault types;
and determining the fault type of the current wheel sensor based on the real-time voltage data of the current wheel sensor, all preset fault types and voltage data ranges corresponding to various preset fault types.
Optionally, after determining that the current operating state of the wheel sensor is a fault state, the method further includes:
acquiring all preset fault types and voltage data ranges corresponding to the preset fault types;
and determining the fault type of the current wheel sensor based on the duration, all preset fault types and the voltage data range corresponding to each preset fault type.
Optionally, the determining that the voltage data of the current wheel sensor is greater than the preset maximum idle voltage and less than the duration of the preset minimum occupancy voltage includes:
generating a real-time voltage curve corresponding to the current wheel sensor based on the real-time voltage data of the current wheel sensor and the historical voltage data of the current wheel sensor;
and determining the duration of the voltage data of the current wheel sensor, which is greater than the preset maximum idle voltage and less than the preset minimum occupied voltage, according to the real-time voltage curve corresponding to the current wheel sensor.
Optionally, the method further includes:
and if the current wheel sensor is in a fault state, storing the fault type of the current wheel sensor, the real-time voltage data of the current wheel sensor and the historical voltage data of the current wheel sensor.
According to the technical scheme, the corresponding voltage maximum values are respectively set for the wheel sensors in the idle state and the occupied state, and the operation state (such as the fault state) of each wheel sensor is determined based on the real-time voltage data and the idle/occupied state of each wheel sensor and the corresponding voltage maximum values of the idle state and the occupied state. Like this, can directly determine the running state of each wheel sensor to make the operating condition that technical staff can directly confirm each wheel sensor according to the aforesaid, carry out the pertinence maintenance to the wheel sensor that is in the fault condition, thereby can effectively reduce the maintenance time of wheel sensor, and then can effectively improve train operation ability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic flow chart illustrating an operation state detection method of a wheel sensor according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an operation status detection system according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating an operation state detection method of a wheel sensor according to an embodiment of the present invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Fig. 1 shows a schematic flow chart of an operation state detection method of a wheel sensor provided in the present embodiment, including:
s101, acquiring real-time voltage data of each wheel sensor, and determining the idle/occupied state of each wheel sensor based on the real-time voltage data of each wheel sensor.
In implementation, the real-time voltage data of each wheel sensor may be acquired, the idle/occupied state of each wheel sensor is determined based on the real-time voltage data of each wheel sensor, that is, whether each wheel sensor is in the idle state or the occupied state is determined, and the operating state of each wheel sensor, such as a fault state, a normal state, and the like, may be determined based on the real-time voltage data of each wheel sensor, the idle/occupied state, and the preset voltage maximum value corresponding to the idle/occupied state. Specifically, first, real-time voltage data of each wheel sensor at the present time may be collected. Then, the idle/occupied state of each wheel sensor may be determined based on the aforementioned real-time voltage data of each wheel sensor, for example, the idle/occupied state of each wheel sensor may be determined according to a range of voltage data corresponding to a preset idle/occupied state. The preset range of the voltage data corresponding to the idle/occupied state may be determined according to a variation range of the historical voltage data of the wheel sensor corresponding to the idle/occupied state. Taking the example that the preset voltage data range corresponding to the idle state is 4.79V ≤ 8.31V, and the preset voltage data range corresponding to the occupied state is 8.39V ≤ 9.96V (wherein V represents the real-time voltage data of the wheel sensor), assuming that the real-time voltage data of a certain wheel sensor is 5.03V, it can be determined that the wheel sensor is in the idle state, and assuming that the real-time voltage data of a certain wheel sensor is 9.52V, it can be determined that the wheel sensor is in the occupied state.
And S102, determining the running state of each wheel sensor based on the real-time voltage data of each wheel sensor, the idle/occupied state of each wheel sensor and the preset voltage maximum value corresponding to the idle state and the occupied state.
The preset voltage maximum value corresponding to the idle state refers to a minimum value and a maximum value in a range of preset voltage data of the idle state, the minimum value in the range of the voltage data of the idle state is a preset minimum idle voltage, and the maximum value in the range of the voltage data of the idle state is a preset maximum idle voltage.
The preset voltage maximum value corresponding to the occupation state refers to the minimum value and the maximum value in the range of the voltage data of the preset occupation state, the minimum value in the range of the voltage data of the occupation state is the preset minimum occupation voltage, and the maximum value in the range of the voltage data of the occupation state is the preset maximum occupation voltage.
The operating states of the wheel sensors include at least a fault state and a normal state.
In implementation, after the real-time voltage data of each wheel sensor is acquired and the idle/occupied state of each wheel sensor is determined, preset voltage maxima corresponding to the idle state and the occupied state, such as a preset minimum idle voltage and a preset maximum idle voltage, and a preset minimum occupied voltage and a preset maximum occupied voltage, may be acquired. Then, the operation state of each wheel sensor can be determined based on the real-time voltage data of each wheel sensor and the idle/occupied state of each wheel sensor, and by combining the preset voltage maximum value corresponding to the idle state and the occupied state, that is, whether each wheel sensor is in a fault state or a normal state is determined respectively, so that corresponding alarm information is generated based on the operation state of each wheel sensor, and a worker can intuitively know the operation state of each wheel sensor based on the alarm information. It will be appreciated that the generated alarm information may include only the sensor identification of the fault condition, and may also include corresponding voltage data.
According to the technical scheme, the corresponding voltage maximum values are respectively set for the wheel sensors in the idle state and the occupied state, and the operation state (such as the fault state) of each wheel sensor is determined based on the real-time voltage data and the idle/occupied state of each wheel sensor and the corresponding voltage maximum values of the idle state and the occupied state. Like this, can directly determine the running state of each wheel sensor to make the operating condition that technical staff can directly confirm each wheel sensor according to the aforesaid, carry out the pertinence maintenance to the wheel sensor that is in the fault condition, thereby can effectively reduce the maintenance time of wheel sensor, and then can effectively improve train operation ability.
Further, on the basis of the above method embodiment, the operation state of each wheel sensor may be determined according to the preset voltage maximum value corresponding to the idle state, and the corresponding processing of step S102 may be as follows: if the current wheel sensor is in an idle state, acquiring a preset minimum idle voltage corresponding to the idle state; judging whether the real-time voltage data of the current wheel sensor is smaller than a preset minimum idle voltage or not; and if the current wheel sensor is smaller than the preset minimum idle voltage, determining that the current wheel sensor is in a fault state.
Wherein, the current wheel sensor refers to any one of the wheel sensors.
In an implementation, when the current wheel sensor is in the idle state, the corresponding preset minimum idle voltage may be selected to determine the operation state of the current wheel sensor. Specifically, if the current wheel sensor is in an idle state, a preset minimum idle voltage corresponding to the idle state may be obtained. Then, the real-time voltage data of the current wheel sensor may be compared with the preset minimum idle voltage to determine whether the real-time voltage data of the current wheel sensor is less than the preset minimum idle voltage. If the real-time voltage data of the current wheel sensor is smaller than the preset minimum idle voltage, the current wheel sensor can be determined to be in a fault state, and the process is circulated gradually according to the judgment process until the running state of each wheel sensor is confirmed. Therefore, the preset minimum idle voltage is determined according to the change range of the corresponding historical voltage data when the wheel sensor is in the idle state, so that the running state of each wheel sensor is determined according to the real-time voltage data of each wheel sensor and the preset minimum idle voltage, the accuracy of the determined running state of each wheel sensor can be improved, the maintenance time of the wheel sensor can be further reduced, and the train operation capacity can be further improved.
Further, on the basis of the above method embodiment, the operation state of each wheel sensor may also be determined according to the maximum occupancy voltage, and the corresponding processing may be as follows: if the current wheel sensor is in an occupied state, acquiring the preset maximum occupied voltage corresponding to the occupied state; judging whether the real-time voltage data of the current wheel sensor is larger than a preset maximum occupied voltage or not; and if the current wheel sensor is larger than the preset maximum occupied voltage, determining that the current wheel sensor is in a fault state.
In an implementation, when the current wheel sensor is in the occupied state, the corresponding preset maximum occupied voltage may be selected to determine the operation state of the current wheel sensor. Specifically, if the current wheel sensor is in the occupied state, the preset maximum occupied voltage corresponding to the occupied state may be obtained. Then, the real-time voltage data of the current wheel sensor may be compared with the preset maximum occupancy voltage to determine whether the real-time voltage data of the current wheel sensor is greater than the preset maximum occupancy voltage. If the real-time voltage data of the current wheel sensor is greater than the preset maximum occupation voltage, the current wheel sensor can be determined to be in a fault state, and the process is circulated gradually according to the judgment process until the running state of each wheel sensor is confirmed. Therefore, the preset maximum occupation voltage is determined according to a large amount of corresponding historical voltage data when the wheel sensors are in the occupation state, so that the running state of each wheel sensor is determined according to the real-time voltage data of each wheel sensor and the preset maximum occupation voltage, the accuracy of the determined running state of each wheel sensor can be further improved, the maintenance time consumption of the wheel sensors can be further reduced, and the train operation capacity can be further improved.
Further, on the basis of the above method embodiment, the operation state of each wheel sensor may also be determined according to a preset maximum idle voltage, and the corresponding processing may be as follows: if the voltage is larger than the preset minimum idle voltage, acquiring a preset maximum idle voltage corresponding to the idle state and a preset minimum occupation voltage corresponding to the occupation state; judging whether the real-time voltage data of the current wheel sensor is larger than a preset maximum idle voltage and smaller than a preset minimum occupied voltage or not; if so, acquiring historical voltage data of the current wheel sensor, and determining the duration of the voltage data of the current wheel sensor which is greater than the preset maximum idle voltage and less than the preset minimum occupied voltage based on the real-time voltage data of the current wheel sensor and the historical voltage data of the current wheel sensor.
The preset time length refers to the time length corresponding to the historical voltage data of each wheel sensor.
The historical voltage data refers to voltage data of the current wheel sensor within a preset time before the current time, and taking the preset time as 5 seconds as an example, the voltage data of each wheel sensor within 5 seconds before the current time is the historical voltage data.
In implementation, if the real-time voltage data of the current wheel sensor is greater than the preset minimum idle voltage, the preset maximum idle voltage corresponding to the idle state and the preset minimum occupancy voltage corresponding to the occupancy state may be obtained. Then, it can be determined whether the real-time voltage data of the current wheel sensor is greater than the preset maximum idle voltage and less than the preset minimum occupancy voltage. If the real-time voltage data of the current wheel sensor is larger than the preset maximum idle voltage and smaller than the preset minimum occupied voltage, historical voltage data of the current wheel sensor can be obtained. Then, based on the real-time voltage data of the current wheel sensor and the historical voltage data of the current wheel sensor, the duration of the voltage data of the current wheel sensor which is greater than the preset maximum idle voltage and less than the preset minimum occupancy voltage can be determined, and the operation state of the current wheel sensor can be determined based on the duration.
Further, on the basis of the above embodiment of the method, the operation state of the current wheel sensor may be determined according to the duration of the current wheel sensor and the preset allowable duration, and the corresponding processing may be as follows: judging whether the duration is longer than a preset allowable duration or not; and if the current wheel sensor is greater than the preset allowable time length, determining that the current wheel sensor is in a fault state.
The preset allowable time length means that the voltage data of the current wheel sensor which is allowed to appear is greater than a preset maximum idle voltage and less than a maximum value of the duration of a preset minimum occupied voltage, that is, the preset allowable time length is exceeded, and the current wheel sensor can be considered to be in a fault state.
In implementation, after determining that the voltage data of the current wheel sensor is greater than the preset maximum idle voltage and less than the duration of the preset minimum occupancy voltage, the duration may be compared with a preset allowable duration to determine whether the duration is greater than the preset allowable duration. If the duration is greater than the preset allowable duration, it may be determined that the current wheel sensor is in a failure state. Taking the preset allowable time duration as 1 second as an example, assuming that the voltage data of the current wheel sensor is greater than the preset maximum idle voltage and the duration time less than the preset minimum occupied voltage is 1.1 seconds, it may be determined that the current wheel sensor is in a fault state, and the process is cycled gradually according to the above determination until the operation state of each wheel sensor is confirmed. . Therefore, the running state of the current wheel sensor is determined according to the duration and the preset allowable duration, namely the running state can be determined according to different voltage data conditions, the accuracy of the determined running state of the wheel sensor can be higher, the maintenance time consumption of the wheel sensor can be further reduced, and the train operation capacity can be further improved.
Further, on the basis of the above method embodiment, the fault type of the current wheel sensor may also be determined, and the corresponding processing may be as follows: acquiring all preset fault types and voltage data ranges corresponding to the preset fault types; and determining the fault type of the current wheel sensor based on the real-time voltage data of the current wheel sensor, all preset fault types and the voltage data range corresponding to various preset fault types.
The preset fault type refers to a preset fault type according to the fault condition of the wheel sensor and corresponding voltage data.
In an implementation, after determining the operational status of each wheel sensor, the failure type corresponding to each failed wheel sensor may also be determined. Specifically, first, all preset fault types may be acquired, and voltage data ranges corresponding to the fault types may be acquired. Then, the fault type of the current wheel sensor can be determined based on the real-time voltage data of the current wheel sensor, all the preset fault types and the voltage data ranges corresponding to the various preset fault types, and the process is repeated one by one until the fault type corresponding to the wheel sensor in each fault state is determined, so that a worker can visually see the fault type corresponding to the wheel sensor in each fault state. Therefore, the wheel sensor in the fault state can be maintained more pertinently by workers, so that the maintenance time can be further shortened, and the operation capacity can be further improved.
Further, on the basis of the above method embodiment, the fault type may also be determined based on the duration of the current wheel sensor, and the corresponding processing may be as follows: acquiring all preset fault types and voltage data ranges corresponding to the preset fault types; and determining the current fault type of the wheel sensor based on the duration, all preset fault types and the voltage data ranges corresponding to the various preset fault types.
In implementation, after the operation state of each wheel sensor is determined according to the duration that the voltage data of each wheel sensor is greater than the preset maximum idle voltage and less than the preset minimum occupancy voltage, the fault type corresponding to the wheel sensor in each fault state can be further determined. Specifically, first, all preset fault types may be acquired, and voltage data ranges corresponding to the fault types may be acquired. Then, the fault type of the current wheel sensor can be determined based on the duration of the current wheel sensor, all the preset fault types and the voltage data ranges corresponding to the preset fault types, and the process is repeated one by one until the fault type corresponding to the wheel sensor in each fault state is determined, so that the worker can visually see the fault type corresponding to the wheel sensor in each fault state. Therefore, the wheel sensor in the fault state can be maintained more pertinently by the staff, so that the maintenance of the wheel sensor by the staff is time-consuming, and the operation capacity can be further improved.
Taking each preset fault type and the voltage data range corresponding to the preset fault type as an example, see table 1, wherein if the real-time voltage of the wheel sensor in a certain fault state is 4.5V, it can be judged that the fault type of the wheel sensor is a voltage lower than the working state; if the real-time voltage of the wheel sensor in a certain fault state is 9.8V, the fault type of the wheel sensor can be judged to be the voltage exceeding working state; assuming that the duration of the voltage data of the wheel sensor in a certain fault state is 1.2 seconds between 8.31 and 8.39V, the fault type of the wheel sensor can be judged to be that the voltage is in an abnormal state; otherwise, the wheel sensor is in a normal state.
TABLE 1
| Preset failure type | Voltage data range |
| Voltage lower than operating state | Less than 4.79V |
| The voltage is in an abnormal state | A duration of more than 8.31V and less than 8.39V is more than 1 second |
| Voltage over-working state | Greater than 9.96V |
Further, on the basis of the above method embodiment, the duration may be determined based on the real-time voltage curve corresponding to the current wheel sensor, and the corresponding processing may be as follows: generating a real-time voltage curve corresponding to the current wheel sensor based on the real-time voltage data of the current wheel sensor and the historical voltage data of the current wheel sensor; and determining the duration of the voltage data of the current wheel sensor, which is greater than the preset maximum idle voltage and less than the preset minimum occupied voltage, according to the real-time voltage curve corresponding to the current wheel sensor.
The real-time voltage curve refers to a voltage change curve generated based on the acquired real-time voltage data and historical voltage data of the current wheel sensor.
In implementation, if the real-time voltage data of the current wheel sensor is greater than the preset maximum idle voltage and less than the preset minimum occupied voltage, a corresponding real-time voltage curve may be generated based on the acquired real-time voltage data and the historical voltage data of the current wheel sensor. Then, the voltage data of the front wheel sensor can be determined according to the real-time voltage curve corresponding to the current wheel sensor, and the duration of the voltage data is greater than the preset maximum idle voltage and less than the preset minimum occupied voltage.
Further, on the basis of the above method embodiment, after determining the fault state and the fault type of each wheel sensor, the fault type and the corresponding fault data of each wheel sensor may also be stored, and the corresponding processing may be as follows: and if the current wheel sensor is in a fault state, storing the fault type of the current wheel sensor, the real-time voltage data of the current wheel sensor and the historical voltage data of the current wheel sensor.
In practice, after determining the failure status of each wheel sensor and the corresponding failure type, the failure type of each wheel sensor and the corresponding failure data such as the corresponding real-time voltage data and the historical voltage data may be stored. It is understood that if only the fault state of each wheel sensor is determined, only the fault state of each wheel sensor and the corresponding fault data may be stored, or data of a normal state may be selectively stored; when storing the failure data, the failure data may be stored in the form of a voltage curve. Therefore, the working personnel can inquire the real-time running state and the historical running state of each wheel sensor as well as corresponding fault data or normal data according to the needs, so that the running state of each wheel sensor can be better controlled, targeted maintenance can be carried out, the maintenance time can be further saved, and the operation capacity can be improved.
It can be understood that the method provided in the embodiment of the present invention may be executed by an operation status detection system, as shown in fig. 2 (in fig. 2, a wheel sensor is taken as two sets of axle counting magnetic heads for illustration, and in practice, the method may also be one set or multiple sets), the system may include a sensing layer (a part in a dashed line frame in fig. 2 is taken as a sensing layer), an isolation module, an acquisition module, a serial server, and a maintenance workstation, where the isolation module may be used to isolate the acquisition module from the sensing layer, and isolate a circuit feedback generated by the acquisition module to prevent the operation of the sensing layer from being affected; the acquisition module can be used for acquiring voltage data of the wheel sensor sensed by the sensing layer, and the serial server can be used for realizing network communication between the maintenance workstation and the acquisition module; the maintenance workstation may be a server that performs data processing and data analysis functions and may communicate with other modules. Specifically, when the operation state detection system is deployed, first, a collecting terminal may be led out between the axle counting magnetic head and the indoor amplifying plate (i.e., at the lightning protection module), and connected to the input end of the isolation module. Then, the output end of the isolation module can be connected to the input end of the acquisition module, and the serial server converts the serial information acquired by each voltage acquisition module into network information and transmits the network information to the maintenance workstation. It can be understood that each wheel sensor can correspond to an isolation module and an acquisition module respectively, a serial port server can be deployed only or can be deployed in multiple numbers, and the maintenance workstation can be an independent server or a server cluster.
Fig. 3 is a schematic diagram illustrating an operation status detection process of a complete wheel sensor according to an embodiment of the present invention, first, before performing operation status detection, network initialization may be performed and an address list of each hardware may be loaded, so as to implement network communication between a maintenance workstation and each module. Then, when the running state detection is executed, the voltage acquisition module of the sensing layer can be used for acquiring the real-time voltage data of each wheel sensor, and the isolation module is used for sending the real-time voltage data of each wheel sensor to the acquisition module. The maintenance workstation may then obtain real-time voltage data for each wheel sensor from the acquisition module at a predetermined period, such as every 50 ms. If the acquisition is successful, the acquired real-time voltage data of each wheel sensor can be added into the queue, and the data in the queue are sequentially analyzed according to the sequence. Then, the operation state of each wheel sensor and the fault type of each wheel sensor in the fault state can be determined according to the analyzed real-time voltage data, and the operation state of each wheel sensor, the fault type of each wheel sensor in the fault state and the corresponding fault data can be forwarded to a terminal for alarming, or can be forwarded to other equipment according to actual needs.
Meanwhile, after the acquired real-time voltage data of each wheel sensor is added into the queue, whether the real-time voltage data of each wheel sensor is abnormal or not can be judged, the abnormal real-time voltage data is added into a storage list, all the real-time voltage data are added into a cache list, and a real-time voltage curve is generated based on all the real-time voltage data. Then, whether the quantity of the voltage data in the current warehousing list reaches a preset upper limit can be judged, if so, all the voltage data in the warehousing list are stored in a database and the warehousing list is emptied for a worker to inquire through front-end equipment; otherwise, continuing to wait until the voltage data volume of the warehousing list reaches a preset upper limit. Meanwhile, whether the cache list receives new real-time voltage data can be judged, if so, data updating is carried out, namely the cache list is emptied and the received real-time voltage data is replaced by the new real-time voltage data; otherwise, continuing to wait until new real-time voltage data is received.
The above-described system embodiments are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
It should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for detecting an operating state of a wheel sensor, the method comprising:
acquiring real-time voltage data of each wheel sensor, and determining the idle/occupied state of each wheel sensor based on the real-time voltage data of each wheel sensor;
and determining the running state of each wheel sensor based on the real-time voltage data of each wheel sensor, the idle/occupied state of each wheel sensor and the preset voltage maximum value corresponding to the idle state and the occupied state.
2. The operating state detecting method of a wheel sensor according to claim 1, wherein the preset voltage maximum value corresponding to the idle state includes a preset minimum idle voltage and a preset maximum idle voltage;
the preset voltage maximum value corresponding to the occupation state comprises a preset minimum occupation voltage and a preset maximum occupation voltage;
the operating states of the wheel sensors include at least a fault state and a normal state.
3. The method for detecting the operating state of a wheel sensor according to claim 2, wherein the determining the operating state of each wheel sensor based on the real-time voltage data of each wheel sensor, the idle/occupied state of each wheel sensor, and the preset voltage maximum corresponding to the idle state and the occupied state comprises:
if the current wheel sensor is in an idle state, acquiring the preset minimum idle voltage corresponding to the idle state;
judging whether the real-time voltage data of the current wheel sensor is smaller than the preset minimum idle voltage or not;
and if the current wheel sensor is smaller than the preset minimum idle voltage, determining that the current wheel sensor is in a fault state.
4. The method for detecting the operating state of a wheel sensor according to claim 2, wherein the determining the operating state of each wheel sensor based on the real-time voltage data of each wheel sensor, the idle/occupied state of each wheel sensor, and the preset voltage maximum corresponding to the idle state and the occupied state comprises:
if the current wheel sensor is in an occupied state, acquiring the preset maximum occupied voltage corresponding to the occupied state;
judging whether the real-time voltage data of the current wheel sensor is larger than the preset maximum occupied voltage or not;
and if the current wheel sensor is larger than the preset maximum occupation voltage, determining that the current wheel sensor is in a fault state.
5. The operating state detecting method of a wheel sensor according to claim 3, wherein said judging whether the real-time voltage data of the current wheel sensor is less than the preset idle minimum voltage further comprises:
if the idle voltage is larger than the preset minimum idle voltage, acquiring the preset maximum idle voltage corresponding to the idle state and the preset minimum occupied voltage corresponding to the occupied state;
judging whether the real-time voltage data of the current wheel sensor is larger than the preset maximum idle voltage and smaller than the preset minimum occupied voltage or not;
if yes, historical voltage data of the current wheel sensor is obtained, and based on the real-time voltage data of the current wheel sensor and the historical voltage data of the current wheel sensor, the voltage data of the current wheel sensor is determined to be larger than the preset maximum idle voltage and smaller than the duration of the preset minimum occupied voltage.
6. The operating state detecting method of a wheel sensor according to claim 5, wherein after the determination that the voltage data of the current wheel sensor is greater than the preset maximum idle voltage and less than the preset minimum occupancy voltage for a duration, further comprising:
judging whether the duration is greater than a preset allowable duration or not;
and if the current wheel sensor is greater than the preset allowable time length, determining that the current wheel sensor is in a fault state.
7. The operating state detecting method of a wheel sensor according to claim 3 or 4, wherein after determining that the current operating state of the wheel sensor is a failure state, further comprising:
acquiring all preset fault types and voltage data ranges corresponding to the preset fault types;
and determining the fault type of the current wheel sensor based on the real-time voltage data of the current wheel sensor, all preset fault types and voltage data ranges corresponding to various preset fault types.
8. The operating state detecting method of a wheel sensor according to claim 6, further comprising, after determining that the current operating state of the wheel sensor is a failure state:
acquiring all preset fault types and voltage data ranges corresponding to the preset fault types;
and determining the fault type of the current wheel sensor based on the duration, all preset fault types and the voltage data range corresponding to each preset fault type.
9. The operating state detecting method of a wheel sensor according to claim 5, wherein the determining a duration of the voltage data of the current wheel sensor being greater than the preset maximum idle voltage and less than the preset minimum occupancy voltage includes:
generating a real-time voltage curve corresponding to the current wheel sensor based on the real-time voltage data of the current wheel sensor and the historical voltage data of the current wheel sensor;
and determining the duration of the voltage data of the current wheel sensor, which is greater than the preset maximum idle voltage and less than the preset minimum occupied voltage, according to the real-time voltage curve corresponding to the current wheel sensor.
10. The operating state detecting method of a wheel sensor according to any one of claims 1 to 9, characterized by further comprising:
and if the current wheel sensor is in a fault state, storing the fault type of the current wheel sensor, the real-time voltage data of the current wheel sensor and the historical voltage data of the current wheel sensor.
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