JP7090062B2 - Seat control device - Google Patents

Description

The present invention relates to a seat control device for controlling a seat installed in a moving body such as a railroad vehicle.

As a moving body, for example, in a railroad vehicle, a seat for passengers is installed in the passenger compartment. This type of seat can be operated by rotating the seat orientation, reclining, deploying / storing the leg rest, and the like. Further, the above-mentioned functions such as rotation of the seat may cause the mechanical parts to be consumed due to deterioration over time and the like, which may hinder the operation. That is, it breaks down. Conventionally, seat failures have been confirmed by manual visual inspection and inspection. In addition, breakdowns were prevented by replacing parts on a regular basis.

The railroad vehicle is provided with a monitor device that collects the state of the vehicle and the operating state of each device at both ends of each vehicle or train (see, for example, Patent Document 1). The information items collected by the monitor device described in Patent Document 1 are mainly related to running such as pantograph, trolley, ATC, brake, main converter, power supply voltage, etc., and information on the presence or absence of failure may also be collected. can.

Japanese Patent Application Laid-Open No. 2003-118577

As described above, the invention described in Patent Document 1 is mainly related to the traveling of a railway vehicle, and does not consider any seat. Further, in the invention described in Patent Document 1, information at the time of failure is collected, but the prediction of failure is not taken into consideration. In particular, it is desired to prevent the breakdown of the seat because the breakdown of the seat leads to the deterioration of the passenger service.

Therefore, an object of the present invention is to provide a seat control device capable of reducing the burden of manual confirmation work and further predicting a failure.

The invention according to claim 1 made to solve the above problems includes a collecting unit that collects information on consumable parts included in a seat installed in a moving body, and the consumable unit collected by the collecting unit. The consumable component is provided with a determination unit that determines the degree of wear of the consumable component based on information about the component, and an output unit that outputs information regarding failure prediction of the consumable component based on the determination result of the determination unit. The information relating to the above includes at least one or more of the ambient temperature information of the consumable part, the operation frequency information of the consumable part, the current value information of the consumable part, and the illuminance information of the light emitting element as the consumable part. The collecting unit is a seat control device characterized in that a request command for information regarding the consumable part is transmitted to the seat and information regarding the consumable part transmitted from the seat in response to the request order is received. ..

The invention according to claim 2 is characterized in that, in the invention according to claim 1, the collecting unit transmits the request command at a fixed time cycle .

The invention according to claim 3 is the invention according to claim 1 or 2 , wherein the collecting unit collects ambient temperature information of the consumable part detected by a temperature detecting unit provided in the vicinity of the consumable part. After collecting, the determination unit calculates the estimated life of the consumable part based on the ambient temperature information collected by the collection unit, and the output unit calculates the estimated life based on the estimated life calculated by the determination unit. It is characterized by outputting information on failure prediction .

The invention according to claim 4 is the invention according to claim 1 or 2 , wherein the collecting unit measures the number of times of operation of the consumable part, and the information on the number of times of operation of the consumable part measured by the unit for measuring the number of operations of the consumable part. The determination unit determines the life of the consumable part based on the operation frequency information collected by the collection unit, and the output unit determines the failure prediction based on the result determined by the determination unit. It is characterized by outputting information about .

The invention according to claim 5 is the invention according to claim 1 or 2 , wherein the collecting unit is the current value information of the consumable part detected by the current detecting unit that detects the current value flowing through the consumable part. The determination unit estimates the degree of deterioration of the consumable part based on the current value information collected by the collection unit, and the output unit estimates the degree of deterioration based on the degree of deterioration estimated by the determination unit. It is characterized in that information regarding the failure prediction is output .

The invention according to claim 6 is the invention according to claim 1 or 2 , wherein the collecting unit is the illuminance of the light emitting element detected by the illuminance detecting unit that detects the illuminance of the light emitting element as the consumable part. Information is collected, the determination unit estimates the degree of deterioration of the light emitting element based on the illuminance information collected by the collection unit, and the output unit estimates the degree of deterioration based on the degree of deterioration estimated by the determination unit. It is characterized in that information regarding the failure prediction is output .

The invention according to claim 7 is the invention according to any one of claims 1 to 6 , wherein the output unit suspends the use of the seat as information regarding the failure prediction. It is characterized by including .

According to this embodiment, it is possible to collect information on consumable parts, determine the degree of wear, and output information on failure prediction of the consumable parts, so that failure prediction can be automatically performed. Therefore, it is possible to take appropriate measures before the failure, and for example, parts can be replaced at an appropriate time. Therefore, the burden of manual confirmation work can be reduced.

It is a schematic block diagram of the system provided with the seat control control device which concerns on one Embodiment of this invention. It is a functional block diagram of the control board shown in FIG. It is a sequence diagram in the case of periodically acquiring and accumulating consumable parts information by a monitoring device. It is a sequence diagram at the time of accumulating consumable parts information in a control board. It is a flowchart in the case of generating and outputting failure prediction information by temperature. It is a flowchart when the failure prediction information is generated and output by the electric current. It is a flowchart in the case of generating and outputting failure prediction information by the number of operations. It is a flowchart when the failure prediction information is generated and output by the illuminance.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 8. FIG. 1 is a schematic configuration diagram of a system including a seat control device according to an embodiment of the present invention. The system shown in FIG. 1 is provided on a moving body such as a railroad vehicle. In the following description, an example of a railroad vehicle will be described as a moving body, but the moving body may be an aircraft, a ship, an automobile, or the like.

The system shown in FIG. 1 includes a seat 20, a monitoring device 30, and a ground-side device 40.

The seat 20 is installed, for example, in the passenger compartment of a railroad vehicle. The seat 20 is a well-known seat that allows a plurality of people, such as a two-seater or a three-seater, to sit side by side (may be a single-seater). Further, the seat 20 can be rotated in the horizontal direction to change the direction so that the passenger can sit in the traveling direction or the opposite direction. The seat 20 includes a seat portion 21, a back slip 22, and a leg rest 23.

The angle of the back slip 22 can be changed (reclining) according to the preference of the seated person. The leg rest 23 can be deployed and stored according to the preference of the seated person.

Further, the seat 20 is connected to another seat in the same vehicle and the communication line L1. In the example of FIG. 1, the seat 20-1, the seat 20-2, and the seat 20-3 are connected to the communication line L1. The communication line L1 may be wired or wireless. Further, the network topology of the communication line L1 is not limited to the bus type, and may be another topology such as a star type.

A monitor device 30 is connected to the communication line L1. The monitoring device 30 is a device that collects the state of each device in the railway vehicle, determines the degree of wear of the consumable parts described later, and outputs information (fault prediction information) regarding failure prediction of the consumable parts. In the present embodiment, the monitoring device 30 collects information (consumable part information) about the consumable parts included in the seat 20 through the communication line L1. In this embodiment, one monitoring device 30 is installed in each vehicle. That is, as shown in FIG. 1, the monitoring device 30-1 of the leading vehicle (first car) collects information on consumable parts of seats 20-1, seats 20-2, and seats 20-3, and the leading vehicle. It is possible to output failure prediction information for the seats installed in. Similarly, the monitoring device 30-2 of the second car can collect information on consumable parts of the seat 20 installed in the second car and output failure prediction information of the seat installed in the second car.

Further, the monitoring device 30-1 of the leading car receives the failure prediction information collected by the monitoring devices 30 of other cars constituting the same train set. The monitoring device 30 of each vehicle is connected by a communication line L2. Then, the monitoring device 30-1 can wirelessly communicate with the ground side device 40. The ground-side device 40 is provided at a depot, a station, or the like, and it is possible to acquire information on consumable parts of the train from the monitoring device 30-1.

Further, the seat 20 includes a control board 10. The control board 10 controls the operation of each consumable component, which will be described later, and controls the sensors and the like. FIG. 2 shows a configuration diagram of the control board 10, consumable parts, and sensors.

As shown in FIG. 2, the control board 10 includes a central control unit 11, a memory 12, an interface circuit 13, a control circuit 14, and a detection circuit 15. Further, the seat 20 includes a rotary motor 20a, an electric actuator 20b, a seat heater 20c, a reading light 20d, a control panel 20e, position sensors 20f and 20g, a current sensor 20h, a seating detection sensor 20i, and an illuminance. It includes a sensor 20j and a temperature sensor 20k.

The central control unit 11 controls the operations of the rotary motor 20a, the electric actuator 20b, the seat heater 20c, the reading light 20d, and the like via the control circuit 14 based on the operation performed on the control panel 20e described later. Further, the central control unit 11 outputs the detection results of the position sensors 20f, 20g, the current sensor 20h, the seating detection sensor 20i, the illuminance sensor 20j, and the temperature sensor 20k in response to a request from the monitoring device 30. The central control unit 11 is composed of, for example, a CPU (Central Processing Unit), an FPGA (Field Programable Gate Array), or the like.

The memory 12 stores the detection result (monitoring result) acquired from each sensor, the energization time, and the like. The memory 12 is composed of, for example, a semiconductor memory or the like.

The interface circuit 13 outputs the consumable part information output by the central control unit 11 to the monitoring device 30. Further, the interface circuit 13 receives the consumable part information output from the other seat 20 and outputs it to the monitor device 30. Further, the interface circuit 13 receives a request command or the like from the monitor device 30 and outputs the request command or the like to the central control unit 11.

The control circuit 14 controls the operation of the rotary motor 20a, the electric actuator 20b, the seat heater 20c, the reading light 20d, etc. by the control from the central control unit 11.

The detection circuit 15 acquires the detection results of the position sensor 20f, 20g, the current sensor 20h, the seating detection sensor 20i, the illuminance sensor 20j, and the temperature sensor 20k, and outputs the detection results to the central control unit 11.

The rotary motor 20a is a motor for rotating the seat 20 in the horizontal direction. The electric actuator 20b includes an actuator for reclining the back slip 22 and an actuator for deploying / storing the leg rest 23.

In the seat heater 20c, for example, a cord-shaped heater is arranged and fixed in a seat portion 21 in a predetermined meandering shape, and the seat portion 21 is warmed to warm the seated person. The reading light 20d is provided on the seat 20 itself or near the seat 20 and irradiates the seated person with spot light for lighting.

The control panel 20e is composed of a plurality of push buttons and the like, and is provided on, for example, an accoudoir of the seat 20. The control panel 20e can perform various operations such as adjusting the reclining angle, deploying / storing the leg rest 23, turning on / off the seat heater 20c, and turning on / off the reading light 20d by operating the constituent push buttons. can.

The position sensor 20f is a sensor that detects the orientation (upward side / downside side, etc.) of the seat 20 when it is rotated. The position sensor 20f can be composed of, for example, a sensor such as a potentiometer that detects the rotation position of the rotation axis of the rotation motor 20a. The position sensor 20g is a sensor that detects the position of the electric actuator 20b. The position sensor 20g can be composed of, for example, a sensor such as a potentiometer that detects the position of an arm constituting the electric actuator 20b.

The current sensor 20h is a current detection unit that detects the current flowing through the rotary motor 20a and the electric actuator 20b. As the current sensor 20h, a well-known current sensor such as one using a Hall element can be used. The seating detection sensor 20i is provided on the seat portion 21 and detects the presence or absence of a seated person. The seating detection sensor 20i can be configured by, for example, a pressure sensor or the like.

The illuminance sensor 20j is an illuminance detection unit that detects the illuminance of the reading light 20d. The illuminance sensor 20j can be composed of, for example, a phototransistor or the like. The temperature sensor 20k is provided in the vicinity of the control board 10, and is a temperature detection unit that detects the ambient temperature of the control board 10. The temperature sensor 20k can form a thermistor, a thermocouple, an IC type sensor, or the like. As each of the above-mentioned sensors, a sensor of a well-known method other than those described may be used, and the present invention is not particularly limited.

Here, in the present embodiment, the current value detected by the current sensor 20h, the illuminance value detected by the illuminance sensor 20j, and the ambient temperature detected by the temperature sensor 20k are consumable part information. Further, in the present embodiment, in addition to these, as consumable parts information, the operating time of the seat 20, the number of times each button of the control panel 20e is operated, the number of times the seat 20 is rotated, and the number of times the reclining or leg rest 23 is operated are also included. include. As for the operating time of the seat 20, the power-on time may be measured by the central control unit 11. As for the number of button operations, the operation signal from the control panel 20e may be counted by the central control unit 11. As for the number of rotations of the seat, for example, the number of times the position sensor 20f is positioned in the upward direction may be counted by the central control unit 11. As for the number of reclining and leg rest 23 operations, the central control unit 11 may count the number of times the position sensor 20g has reached a predetermined position. That is, these times are also included in the physical quantity in the present embodiment, and the central control unit 11 functions as the operation number measurement unit.

Next, the operation of the system having the above-described configuration will be described with reference to FIGS. 3 to 8. First, the operation when the monitoring device 30 collects the consumable parts information collected in the seat 20 will be described with reference to FIGS. 3 and 4. That is, the monitoring device 30 functions as a collecting unit for collecting information on consumable parts.

FIG. 3 is a sequence diagram in the case where the monitoring device 30 periodically acquires and stores consumable part information. First, the central control unit 11 acquires consumable part information as recording / arithmetic processing (t11) and stores it in the memory 12 as transmission data (t12). The consumable parts information acquired by t11 is, for example, ambient temperature information detected by the temperature sensor 20k, operation count information counted by the central control unit 11, current value information detected by the current sensor 20h, and illuminance information detected by the illuminance sensor 20j. and so on.

Next, the monitoring device 30 transmits a request command for the consumable part information at the timing of acquiring the consumable part information (t13). When the central control unit 11 receives the request command for consumable parts information from the monitor device 30, the central control unit 11 transmits the transmission data stored in the memory 12 to the monitor device 30 via the interface circuit 13 as a response to the request command. t14).

Next, the monitoring device 30 transmits a request command for the consumable part information at the timing of acquiring the consumable part information (t15). The timing of acquisition of the previous consumable parts information to the timing of acquisition of the current consumable parts information is a fixed time cycle (t). Then, when the central control unit 11 receives the request command for consumable parts information from the monitor device 30, the central control unit 11 transmits the transmission data stored in the memory 12 to the monitor device 30 via the interface circuit 13 as a response to the request command. (T16).

Next, the central control unit 11 acquires consumable part information as recording / arithmetic processing (t17) and stores it in the memory 12 as transmission data (t18). The timing of acquisition of the previous consumable parts information to the timing of acquisition of the current consumable parts information is a fixed time cycle (T). In the example of FIG. 3, the relationship is t <T, but the relationship may be t = T or t> T. However, if t is larger, the interval at which the monitoring device 30 transmits the request command becomes longer, so it is necessary to increase the area for storing the consumable component information of the memory 12.

Next, the monitoring device 30 transmits a request command for the consumable part information at the timing of acquiring the consumable part information (t19). When the central control unit 11 receives the request command for consumable parts information from the monitor device 30, the central control unit 11 transmits the transmission data stored in the memory 12 to the monitor device 30 via the interface circuit 13 as a response to the request command. t20).

Next, the monitoring device 30 transmits a request command for the consumable part information when it is time to acquire the consumable part information (t21). Then, when the central control unit 11 receives the request command for consumable parts information from the monitor device 30, the central control unit 11 transmits the transmission data stored in the memory 12 to the monitor device 30 via the interface circuit 13 as a response to the request command. (T22).

Next, the central control unit 11 acquires consumable part information as recording / arithmetic processing (t23) and stores it in the memory 12 as transmission data (t24). After that, the above-mentioned operation is repeated.

FIG. 4 is a sequence diagram in the case of accumulating consumable parts information in the seat 20 (control board 10). First, the central control unit 11 acquires consumable part information as recording / arithmetic processing and stores it in the memory 12 (t31). Unlike FIG. 3, this accumulation is performed sequentially rather than in a fixed time cycle.

The monitoring device 30 transmits a request command for consumable parts information when it is time to acquire consumable parts information (t32). When the central control unit 11 receives the consumable part information request command from the monitor device 30, it acquires the consumable part information stored in the memory 12 (t33), and uses the acquired consumable part information as a response to the request command. It is transmitted to the monitoring device 30 via the interface circuit 13 (t34). Then, the monitoring device 30 generates and outputs failure prediction information, which will be described later, based on the received consumable parts information.

Next, the monitoring device 30 transmits a request command for the consumable part information at the timing when it is desired to acquire the consumable part information (t35). When the central control unit 11 receives the consumable part information request command from the monitor device 30, it acquires the consumable part information stored in the memory 12 (t36), and uses the acquired consumable part information as a response to the request command. It is transmitted to the monitoring device 30 via the interface circuit 13 (t37). Then, the monitoring device 30 generates and outputs failure prediction information, which will be described later, based on the received consumable parts information.

Next, an operation of generating and outputting failure prediction information based on the consumable part information collected by the sequence diagram of FIG. 3 or FIG. 4 will be described with reference to FIGS. 5 to 8.

FIG. 5 shows a case where failure prediction information is generated and output depending on the temperature. The flowchart of FIG. 5 is executed at regular intervals such as daily, weekly, or monthly. First, the monitoring device 30 receives the room temperature information from the host device and records it internally (S11). Examples of the higher-level device include the monitoring device 30-1 of the leading vehicle, which is a generalization of other monitoring devices 30 and the monitoring device 30 of the train set. The room temperature is the temperature inside the room. As the room temperature, a temperature detected by a temperature sensor for an air conditioner or the like that adjusts the temperature in the room, a set temperature, or the like can be used.

Next, the monitoring device 30 acquires the ambient temperature of the control board 10 from the temperature sensor 20k and records it internally (S12). This ambient temperature is obtained by the method shown in FIG. 3 or FIG. Then, the monitoring device 30 determines whether or not one hour has elapsed from the start of the flow (S13), returns to S11 if it has not elapsed (S13; N), and acquires it if it has elapsed (S13; Y). The life of the solder, electrolytic capacitor, etc. of the control board 10 is calculated and recorded from the room temperature and the ambient temperature (S14).

Here, a method of calculating the life will be described. For example, as an electronic component, the life of an electrolytic capacitor at 105 ° C is suggested by the manufacturer, and it is calculated that the life is doubled every time the temperature drops by 10 ° C (Arrhenius equation). Therefore, it is possible to calculate the estimated life in the actual usage environment of the electronic components mounted on these boards and devices from the ambient temperature of the power supply device in the control board 10 and the seat 20.

Further, for the life of the solder of the control board 10 and the power supply device, the temperature cycle condition in the actual use environment can be calculated from the swing width of the room temperature and the increase value of the temperature of the solder portion (1 hour elapses in S13). It is possible to measure the swing width and the temperature rise value of the solder part). Furthermore, it is possible to calculate the estimated life of the solder by comparing it with the measured data from past solder crack cases and the results of the temperature cycle test. That is, the monitoring device 30 has in advance formulas, parameters, and the like necessary for calculating the life such as the results of past actual measurement data and temperature cycle tests.

Further, the life of the electric actuator 20b and the rotary motor 20a may be indicated by each manufacturer as an estimated life based on the device temperature. If the temperature of the relevant part is known, it is possible to calculate the estimated life. Further, the seat heater 20c can determine deterioration / failure of the device by comparing the temperature rise with respect to the ambient temperature measured in advance with respect to the ambient temperature and the temperature data measured for each seat 20. In this embodiment, since the ambient temperature of the control board 10 is detected, the ambient temperature of the electric actuator 20b and the rotary motor 20a may be used after correcting the detected ambient temperature. Alternatively, if it is known in advance that the difference in ambient temperature is small, the detected ambient temperature may be used as it is.

In the flowchart of FIG. 5, as described above, consumable parts whose life changes depending on the temperature, such as electronic parts such as electrolytic capacitors, solder of electronic circuit boards, electric actuators 20b, rotary motors 20a, and seat heaters 20c, are targeted. Become.

Next, failure prediction information is generated from the life calculated in S14 and the operating time so far, and notified (output) (S15). For example, the possibility of failure occurrence may be determined in three stages of high, medium, and low based on the operating time and the life, and the determination result may be used as failure prediction information. That is, this determination result is the degree of wear. Of course, it is not limited to the three stages and may be another expression method. Alternatively, the operating time and the life may be used as the failure prediction information (in this case, the operating time and the life are the degree of consumption and also the failure prediction information). In addition, the output destination of the failure prediction information is a display device for displaying to the crew, etc., and the ground side device 40 shown in FIG. do.

Further, in addition to the above-mentioned information, the failure prediction information may include information to stop using the target seat 20. That is, the use of the seat 20 may be stopped if the life is short even if the failure does not occur.

FIG. 6 shows a case where failure prediction information is generated and output by an electric current. First, the reclining operation is executed by operating the control panel 20e or the like (S21). Then, the monitoring device 30 acquires and records the current value of the electric actuator 20b during the reclining operation (S22). This current value is obtained by the method shown in FIG. 3 or FIG.

Next, the monitoring device 30 determines whether or not the current value acquired in S22 is out of the specified range (S23), and if it is within the specified range (S23; N), it returns to S21, and if it is out of the specified range (S23). Y) notifies (outputs) the failure prediction information (S24). That is, the information indicating whether or not it is out of the standard range is the degree of wear (deterioration). The failure prediction information in FIG. 6 may be, for example, information indicating that the current value is out of specification or the current value itself. Further, instead of determining the acquired current value, the amount of change from the previous time may be determined.

By monitoring the current value during operation of the electric actuator 20b on the control board 10 side, when a current value different from the normal time occurs frequently, for example, there is a place where the current suddenly increases, the mechanism unit It can be estimated as a sign of distortion or deterioration of equipment. Then, it becomes possible to determine the replacement of parts and the implementation of repair. Further, since the current value of the gas damper used in the seat 20 changes due to the change in tension, it is possible to determine the deteriorated state.

Further, in the description of FIG. 6, although the reclining operation (electric actuator 20b) has been described, the leg rest 23 may be deployed / retracted. Further, the current value of the rotary motor 20a during the rotational operation of the seat 20 can also be used to determine the distortion of the mechanical portion.

In the flowchart of FIG. 6, as described above, the mechanical parts driven by the parts operated by the electric current such as the electric actuator 20b and the mechanical part driven by the rotary motor 20a are the consumable parts.

In addition to the current, signs of distortion of the mechanical unit and deterioration of the equipment can be detected by monitoring the rotational position of the rotary motor 20a and the arm position of the electric actuator 20b with a position sensor 20f, 20g such as a potentiometer.

FIG. 7 shows a case where failure prediction information is generated / output according to the number of operations. First, the control panel 20e or the like is operated to execute the rotation operation of the seat 20 (S31). Then, the central control unit 11 gives a rotation instruction to the rotary motor 20a in response to the operation signal from the control panel 20e, and increments (+1) the counter for counting the number of operations to record (S32).

Next, the monitoring device 30 acquires the number of operations recorded in S32 and determines whether or not the acquired number of operations is equal to or greater than the threshold value (S33). If it is less than the threshold value (S33; N), it returns to S31, and if it is more than the threshold value (S33; Y), the failure prediction information is notified (output) (S34). That is, the information indicating whether or not it is equal to or higher than the threshold value is the degree of wear. The failure prediction information in FIG. 7 may be information indicating that the number of operations has exceeded the threshold value or the number of operations itself.

In the description of FIG. 6, although the rotation operation has been described, the number of reclining operations and the expansion / storage operations of the leg rest 23 may be used. Further, it may be the number of times the push button of the control panel 20e is operated.

For mechanical parts such as actuators, motors, operation switches (push buttons), limit switches, and relays, the mechanical life of each manufacturer is indicated by the number of times of use. By counting the number of inputs and the number of operations in the central control unit 11, it is possible to predict the life based on the number of times of use instead of the time. That is, the life is determined by determining whether or not it is equal to or greater than the above-mentioned threshold value. Further, with respect to the seat portion 21 and the back slip 22, it is possible to estimate the degree of deterioration of the material such as urethane constituting the cushion or the like from the number of operations of the seating detection sensor 20i.

In the flowchart of FIG. 7, as described above, parts such as actuators, motors, operation switches, limit switches, and relays whose mechanical life is indicated by the number of times of use and parts whose deterioration progresses depending on the number of times of use such as cushions. Is the target consumable part.

By measuring the number of movements, it is possible to collect data on the frequently used seat 20 and the less frequently used seat 20. By exchanging parts between the seats 20 based on this information, deterioration can be averaged.

FIG. 8 shows a case where failure prediction information is generated and output depending on the illuminance. The flowchart of FIG. 8 is executed at regular intervals such as daily, weekly, or monthly. First, the central control unit 11 measures (detects) and records the illuminance of the reading light 20d from the illuminance sensor 20j (S41). Then, the monitoring device 30 acquires the illuminance recorded in S41 and determines whether or not the acquired illuminance is equal to or less than the threshold value (S42). That is, the information indicating whether or not it is below the threshold value is the degree of wear (deterioration). When the threshold value is exceeded (S42; N), the process returns to S41, and when the threshold value is exceeded (S42; Y), failure prediction information is notified (output) (S43). The failure prediction information in FIG. 8 may be information indicating that the illuminance is below the threshold value or the illuminance value itself.

The luminous flux of a light emitting element such as an LED used for the reading light 20d gradually decreases over time. By providing the illuminance sensor 20j on the vehicle seat on which the reading light 20d is mounted, the illuminance (luminance) at a certain distance from the reading light 20d can be measured, and the deterioration state can be estimated by the illuminance reduction rate.

In the flowchart of FIG. 8, as described above, parts using a light emitting element such as a lighting device such as a reading light 20d are consumable parts.

Further, in addition to the method of generating / outputting the failure prediction information based on the above-mentioned flowchart, there is also a method of determining the deterioration state based on the aging time and outputting the failure prediction information. For example, since the seat heater 20c deteriorates the heating element and the wiring over time, the monitoring device 30 or the like can determine that a predetermined time has elapsed and output the failure prediction information.

As is clear from the above description, the monitoring device 30 is consumed based on the collection unit that collects information on the consumable parts provided in the seat installed in the room of the moving body and the information on the consumable parts collected by the collection unit. It functions as a determination unit that determines the degree of wear of parts and an output unit that outputs information regarding failure prediction of the consumable parts based on the determination result of the determination unit. That is, the monitor device 30 functions as a seat control device.

According to the present embodiment, the monitoring device 30 collects information on consumable parts included in the seat 20 installed in the passenger compartment of the railway vehicle from the control board 10, and based on the collected consumable parts information, the life of the consumable parts. , Distortion, signs of deterioration, etc. are determined, and failure prediction information of the consumable part is output based on the determination result. With such a configuration, it is possible to automatically predict a failure. Therefore, it is possible to take appropriate measures before the failure, and for example, parts can be replaced at an appropriate time. Therefore, the burden of manual confirmation work can be reduced.

Further, since the monitor device 30 collects information on consumable parts, determines the life of consumable parts, determines signs of distortion or deterioration, and outputs failure prediction information, it is not limited to the state of consumable parts in a single seat 20, but a plurality of consumable parts. It is possible to grasp the state of consumable parts of the seat 20 of the seat 20. Therefore, it is possible to take measures such as inspecting a vehicle with severe deterioration at an early stage. In addition, measures such as replacement of parts between the seats 20 can be taken, and deterioration can be averaged.

Further, the monitoring device 30 collects the ambient temperature of the control board 10 detected by the temperature sensor 20k, calculates the life of the consumable part based on the collected ambient temperature, and obtains failure prediction information based on the calculated life. Output. By doing so, it is possible to calculate the estimated life from the temperature of the consumable parts. Therefore, it is possible to take measures such as replacement of parts that are easily affected by temperature at an appropriate time before a failure occurs.

Further, the monitoring device 30 collects the number of operations of the consumable parts measured by the central control unit 11, determines the life of the consumable parts based on the collected number of operations, and outputs failure prediction information based on the determined result. do. By doing so, it becomes possible to determine whether or not the life is approaching from the number of operations of the consumable parts. Therefore, it is possible to take measures such as replacement of parts that are easily affected by the number of operations at an appropriate time before a failure occurs.

Further, the monitoring device 30 collects the current value of the consumable part detected by the current sensor 20h, estimates the deterioration state of the consumable part based on the collected current value, and obtains the failure prediction information based on the estimated deterioration state. Output. By doing so, it is possible to estimate the deterioration state from the current value flowing through the consumable parts. Therefore, it is possible to take measures such as replacement of parts driven by electric power at an appropriate time before a failure occurs.

Further, the monitor device 30 collects the illuminance detected by the illuminance sensor 20j, estimates the deterioration state of the light emitting element such as the LED of the reading light 20d based on the collected illuminance, and predicts the failure based on the estimated deterioration degree. Output information. By doing so, it is possible to estimate the deterioration state from the illuminance of the light emitting element. Therefore, it is possible to take measures such as replacement of a light emitting element such as an LED at an appropriate time before a failure occurs.

Further, since the failure prediction information includes information to the effect that the use of the seat 20 is stopped, it is possible to notify not only the failure prediction result but also the suspension of use according to the prediction result.

In the above-described embodiment, the monitor device 30 provided separately outside the seat 20 functions as a seat control device to determine the degree of wear such as life and deterioration state, and output failure prediction information. However, the control board 10 (central control unit 11) of the seat 20 may function as a seat control device. By doing so, failure prediction information can be generated by the seat 20 alone, and failure prediction can be performed even when a failure occurs in the communication line L1, for example. When a failure occurs in the communication line L1, the failure prediction information may be output from a communication line (wireless or wired) different from the communication line L1. Alternatively, a USB memory or the like may be connectable so that failure prediction information can be transferred to the memory.

In this case, the consumable part information is not transmitted according to the flowcharts shown in FIGS. 3 and 4. Failure prediction information is output from the seat 20 to the monitor device 30, and is notified to the crew and the like via, for example, a display device connected to the monitor device 30. Alternatively, the failure prediction information is relayed by the monitoring device 30 and transmitted to the ground side device 40. Therefore, in this case, the detection circuit 15 functions as a collection unit, the central control unit 11 functions as a determination unit, and the interface circuit 13 functions as an output unit.

Further, both the monitor device 30 and the central control unit 11 may have the functions of the determination unit and the output unit. In this case, both may be able to determine the degree of wear of all the consumable parts targeted in the present embodiment and output the failure prediction information, but the monitor device 30 determines the degree of wear and outputs the failure prediction information according to the characteristics of the degree of wear. The one that outputs the failure prediction information and the one that determines the degree of wear and outputs the failure prediction information by the central control unit 11 may be separated.

For example, the life of the solder is not the data of a single consumable part such as the swing width of the room temperature and the rise value of the temperature of the solder part as described above, or the past cases of solder cracks, but the data of other consumable parts and the past. Since it is calculated from the data, it is better to use the monitoring device 30. For other consumable parts, the degree of wear can be determined independently and can be performed at the seat 20.

That is, consumable parts for which the monitor device 30 determines the degree of wear according to the characteristics of the consumable parts and the degree of wear may be separated from consumable parts for which the central control unit 11 determines the degree of wear. By doing so, the load applied to the processing as the seat 20 and the monitoring device 30 can be distributed. In addition, it becomes possible to perform processing with an apparatus suitable for the determination method.

The present invention is not limited to the above embodiment. That is, those skilled in the art can carry out various modifications according to conventionally known knowledge within a range that does not deviate from the gist of the present invention. As long as the seat control device of the present invention is still provided by such a modification, it is, of course, included in the category of the present invention.

10 Control board 11 Central control unit (judgment unit, operation count measurement unit)
12 Memory 13 Interface circuit (output section)
14 Control circuit 15 Detection circuit (collector)
20 seats 20a rotary motor (consumable parts)
20b Electric actuator (consumable parts)
20c seat heater (consumable parts)
20d reading light (consumable parts, light emitting element)
20e control panel (consumable parts)
20f Position sensor 20g Position sensor 20h Current sensor (current detector)
20i Seat detection sensor 20j Illuminance sensor (Illuminance detection unit)
20k temperature sensor (temperature detector)
30 Monitor device (collection unit, judgment unit, output unit)
40 Ground-side equipment L1 communication line (network)

Claims (7)

A collection unit that collects information on consumable parts of the seats installed in the room of the moving body,
A determination unit that determines the degree of wear of the consumable parts based on the information about the consumable parts collected by the collection unit.
It is provided with an output unit that outputs information regarding failure prediction of the consumable part based on the determination result of the determination unit .
The information regarding the consumable part includes at least one or more of the ambient temperature information of the consumable part, the operation frequency information of the consumable part, the current value information of the consumable part, and the illuminance information of the light emitting element as the consumable part. Including,
The collecting unit transmits a request command for information regarding the consumable part to the seat, and receives information regarding the consumable part transmitted from the seat in response to the request order.
A seat control device characterized by that. The seat control device according to claim 1, wherein the collecting unit transmits the request command at a fixed time cycle. The collecting unit collects ambient temperature information of the consumable part detected by a temperature detecting unit provided in the vicinity of the consumable part.
The determination unit calculates the estimated life of the consumable parts based on the ambient temperature information collected by the collection unit.
The output unit outputs information regarding the failure prediction based on the estimated life calculated by the determination unit.
The seat control device according to claim 1 or 2 . The collecting unit collects information on the number of times the consumable parts have been operated, which is measured by the number of times of operation measuring unit for measuring the number of times the consumable parts have been operated.
The determination unit determines the life of the consumable part based on the operation number information collected by the collection unit.
The output unit outputs information regarding the failure prediction based on the result determined by the determination unit.
The seat control device according to claim 1 or 2 . The collecting unit collects the current value information of the consumable part detected by the current detecting unit that detects the current value flowing through the consumable part.
The determination unit estimates the degree of deterioration of the consumable part based on the current value information collected by the collection unit.
The output unit outputs information regarding the failure prediction based on the deterioration degree estimated by the determination unit.
The seat control device according to claim 1 or 2 . The collecting unit collects illuminance information of the light emitting element detected by the illuminance detecting unit that detects the illuminance of the light emitting element as a consumable part .
The determination unit estimates the degree of deterioration of the light emitting element based on the illuminance information collected by the collection unit.
The output unit outputs information regarding the failure prediction based on the deterioration degree estimated by the determination unit.
The seat control device according to claim 1 or 2 . The seat control device according to any one of claims 1 to 6 , wherein the output unit includes information indicating that the use of the seat is stopped as information regarding the failure prediction.

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