Collection device

Abstract

To provide a collection device capable of preventing delays in acquisition timing of data.SOLUTION: A collection device 100 connects, via a network, a sound collection part 200 as a device for transmitting sound data and a vibration detection part 300 as a device for transmitting vibration data. The collection device 100 has a control part 130, and an instruction part 120 for transmitting a first transmission instruction as a transmission instruction of the sound data and the vibration data to the control part 130. The control part 130 transmits a second transmission instruction as a transmission instruction of the sound data to the sound collection part 200 when receiving the first transmission instruction, and transmits a third transmission instruction as a transmission instruction of the vibration data to the vibration detection part 300 when detecting the sound data.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to a collection device. [Background technology]

[0002] When a disaster such as an earthquake occurs, the elevator can be restored by remote control. After the elevator is restored, a maintenance worker performs an on-site inspection to confirm that the elevator is operating normally. However, performing on-site inspections is a burden for the maintenance worker. Therefore, in order to reduce the number of times that the maintenance worker must visit the site, a system has been developed that remotely detects and analyzes sound and vibrations in the elevator shaft. A technology for detecting sound and vibration has been proposed (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-236944 Summary of the Invention [Problem to be solved by the invention]

[0004] There is a problem that the timing of acquiring data is delayed due to the operation of the CPU (Central Processing Unit).

[0005] An object of the present disclosure is to prevent delays in the timing of acquiring data. [Means for solving the problem]

[0006] According to one aspect of the present disclosure, there is provided a collection device. The collection device is connected to a first device that transmits first data and a second device that transmits second data via a network. The collection device has a control unit and an instruction unit that transmits a first transmission command to the control unit, the first transmission command being a command to transmit the first data and the second data. When the control unit receives the first transmission command, the control unit transmits a second transmission command to the first device that is a command to transmit the first data, and when the control unit detects the first data, the control unit transmits a third transmission command to the second device that is a command to transmit the second data. [Effects of the Invention]

[0007] According to the present disclosure, it is possible to prevent delays in the timing of acquiring data. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a diagram illustrating an example of an elevator according to a first embodiment. [Figure 2] 2 is a block diagram showing the functions of the collection device according to the first embodiment. FIG. [Figure 3] FIG. 3 is a diagram illustrating functions of a control unit according to the first embodiment. [Figure 4] FIG. [Figure 5] FIG. 2 is a diagram illustrating an outline of a process executed by the collection device according to the first embodiment. [Figure 6] FIG. 4 is a diagram for explaining the timing of transmitting a transmission command according to the first embodiment. [Figure 7] FIG. 2 is a diagram illustrating an example of a flowchart of a process executed by the collection device according to the first embodiment. [Figure 8] FIG. 10 is a diagram (part 1) illustrating the order of transmission commands according to the first embodiment. [Figure 9] FIG. 10 is a diagram (part 2) illustrating the explanation regarding the order of transmission commands according to the first embodiment. [Figure 10] FIG. 10 is a diagram showing an example of an escalator according to a second embodiment. [Figure 11]FIG. 10 is a block diagram showing the functions of a collection device according to a second embodiment. [Figure 12] FIG. 11 is a diagram illustrating an example of a flowchart of a process executed by a collection device according to a second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments will be described with reference to the drawings. The following embodiments are merely examples, and various modifications are possible within the scope of the present disclosure. Note that the objects depicted in the drawings may differ in actual dimensions. Therefore, the actual dimensions should be determined in consideration of the following description.

[0010] Embodiment 1 Fig. 1 is a diagram showing an example of an elevator according to embodiment 1. Fig. 1 shows an elevator car 10, guide rails 11 and 12, and a hoistway 13. The elevator car 10 moves up and down in the hoistway 13 using the guide rails 11 and 12 as guides.

[0011] 1 also shows a collection device 100, a sound collection unit 200, and a vibration detection unit 300. The collection device 100, the sound collection unit 200, and the vibration detection unit 300 are connected via a network.

[0012] The sound collection unit 200 collects sounds inside the elevator. For example, the sound collection unit 200 is realized by a microphone. When the sound collection unit 200 receives a transmission command for sound data indicating the collected sound from the collection device 100, the sound collection unit 200 transmits the sound data to the collection device 100. When the sound collection unit 200 receives an end command from the collection device 100, the sound collection unit 200 ends the transmission of the sound data.

[0013] The vibration detection unit 300 detects vibrations of the elevator car 10. For example, the vibration detection unit 300 is realized by a vibration sensor. When the vibration detection unit 300 receives a transmission command for vibration data indicating the detected vibrations from the collection device 100, the vibration detection unit 300 transmits the vibration data to the collection device 100. Furthermore, when the vibration detection unit 300 receives an end command from the collection device 100, the vibration detection unit 300 ends transmission of the vibration data.

[0014] The collecting device 100 collects sound data from the sound collecting unit 200. The collecting device 100 also collects vibration data from the vibration detecting unit 300.

[0015] Here, the sound collection unit 200 is also referred to as a first device, the vibration detection unit 300 is also referred to as a second device, the sound data is also referred to as first data, and the vibration data is also referred to as second data.

[0016] Next, the functions of the collection device 100 will be described. 2 is a block diagram showing the functions of the collection device according to Embodiment 1. The collection device 100 includes a storage unit 110, an instruction unit 120, and a control unit .

[0017] The storage unit 110 may be realized as a storage area secured in a volatile storage device or a non-volatile storage device included in the collection device 100. The instruction unit 120 may be realized by a processor included in the collection device 100. For example, the processor is a CPU. The control unit 130 may be realized by a CPLD (Complex Programmable Logic Device) included in the collection device 100.

[0018] The storage unit 110 stores the sound data output by the sound collection unit 200. The storage unit 110 also stores the vibration data output by the vibration detection unit 300. The function of the instruction unit 120 will be described in detail later.

[0019] Next, the functions of the control unit 130 will be described. 3 is a diagram showing the functions of the control unit according to embodiment 1. The control unit 130 has a first control unit 131 and a second control unit 132. The functions of the first control unit 131 and the second control unit 132 will be described in detail later.

[0020] Next, the first embodiment will be briefly described by comparing the prior art with the first embodiment. 4 is a diagram showing a comparative example. The collection device 900 has an instruction control unit 910. The instruction control unit 910 is realized by a CPU included in the collection device 900. The collection device 900, the sound collection unit 200, and the vibration detection unit 300 are connected via a network.

[0021] Next, a flow of operations until the collection device 900 collects sound data and vibration data will be described. (Step ST101) The instruction control unit 910 transmits a transmission command to the sound collection unit 200. (Step ST102) The sound collection unit 200 transmits sound data to the instruction control unit 910. (Step ST103) The instruction control unit 910 transmits a transmission command to the vibration detection unit 300. (Step ST104) The vibration detection unit 300 transmits the vibration data to the instruction control unit 910.

[0022] In this way, the instruction control unit 910 can acquire sound data and vibration data. However, if the instruction control unit 910 (i.e., the CPU) is executing another task at the time of step ST103, the instruction control unit 910 cannot transmit a transmission command to the vibration detection unit 300. Therefore, the timing at which the instruction control unit 910 acquires the vibration data is delayed.

[0023] Therefore, in the first embodiment, the following processing is performed. FIG. 5 is a diagram illustrating an outline of the process executed by the collection device according to the first embodiment. (Step ST111) The instruction unit 120 transmits a transmission command to the control unit . (Step ST112) The control unit 130 transmits a transmission command to the sound collection unit 200. (Step ST113) The sound collection unit 200 transmits the sound data to the control unit . (Step ST114) The control unit 130 transmits a transmission command to the vibration detection unit 300. (Step ST115) The vibration detection unit 300 transmits the vibration data to the control unit .

[0024] 5, it is the control unit 130 that sends the transmission command to the vibration detection unit 300. Even if the instruction unit 120 (e.g., CPU) is executing another task at the time of step ST114, the control unit 130 performs the role of step ST103, thereby enabling the collection device 100 to prevent a delay in the timing of acquiring vibration data. Note that the above-mentioned Figures 4 and 5 are just examples.

[0025] Next, the timing at which the control unit 130 transmits a transmission command to the vibration detection unit 300 will be described. Fig. 6 is a diagram for explaining the transmission timing of a transmission command in the first embodiment. Fig. 6 shows a clock signal. When a change in the clock signal is detected, sound data is detected. Then, the control unit 130 transmits a transmission command to the vibration detection unit 300. The detection of the change in the clock signal may be detection of a rise from 0 (Low) to 1 (High) or detection of a fall from 1 (High) to 0 (Low).

[0026] Next, the processing executed by the collection device 100 will be described with reference to a flowchart. FIG. 7 is a diagram illustrating an example of a flowchart of a process executed by the collection device according to the first embodiment. (Step S11) The instruction unit 120 transmits a transmission command to the control unit 130. The transmission command is a command to transmit sound data and vibration data. The transmission command is also referred to as a first transmission command. (Step S12) When the first control unit 131 receives a transmission command from the instruction unit 120, it transmits the transmission command to the sound collection unit 200. The transmission command is a command to transmit sound data. The transmission command is also referred to as a second transmission command. When the sound collection unit 200 receives the transmission command, it transmits the sound data to the collection device 100.

[0027] (Step S13) The first control unit 131 determines whether or not a change in the clock signal has been detected. If a change in the clock signal has been detected (i.e., if sound data has been detected), the process proceeds to step S14. Furthermore, the first control unit 131 stores the sound data in the storage unit 110 via the instruction unit 120. If a change in the clock signal has not been detected, the first control unit 131 waits until a change in the clock signal is detected. (Step S14) The second control unit 132 transmits a transmission command to the vibration detection unit 300. The transmission command is a command to transmit vibration data. The transmission command is also referred to as a third transmission command. When the vibration detection unit 300 receives the transmission command, it transmits the vibration data to the collection device 100.

[0028] (Step S15) The second control unit 132 determines whether or not vibration data has been detected. If vibration data has been detected, the process proceeds to step S16. If vibration data has not been detected, the second control unit 132 waits until vibration data is detected. (Step S16) The second control unit 132 stores the vibration data in the storage unit 110 via the instruction unit 120.

[0029] Furthermore, the control unit 130 may store the sound data and vibration data in the storage unit 110 without going through the instruction unit 120. The sound data and vibration data stored in the storage unit 110 are used as data to be analyzed.

[0030] In the above, a case has been described in which the control unit 130 transmits a transmission command to the vibration detection unit 300 after transmitting the transmission command to the sound collection unit 200. The control unit 130 may transmit a transmission command to the sound collection unit 200 after transmitting the transmission command to the vibration detection unit 300. We will explain the case where a transmission command is sent to the sound collection unit 200 and then to the vibration detection unit 300, and the case where a transmission command is sent to the sound collection unit 200 and then to the vibration detection unit 300.

[0031] 8 is a diagram (part 1) illustrating the order of transmission commands according to the first embodiment. Fig. 8 illustrates a case where a transmission command is transmitted to the vibration detection unit 300, and then a transmission command is transmitted to the sound collection unit 200. 9 is a diagram (part 2) illustrating the explanation regarding the order of transmission commands according to the first embodiment. Fig. 9 illustrates a case where a transmission command is transmitted to the vibration detection section 300 after a transmission command is transmitted to the sound collection section 200.

[0032] As shown in Figures 8 and 9, the sampling rate of the sound data is 32 kHz. The sampling rate of the vibration data is 1 kHz. As shown in Figures 8 and 9, collecting data with a high sampling rate first and then collecting data with a low sampling rate results in less data loss.

[0033] According to the first embodiment, the collection device 100 includes the control unit 130, thereby making it possible to prevent delays in the timing of acquiring data.

[0034] Embodiment 2 Next, a description will be given of embodiment 2. In embodiment 2, differences from embodiment 1 will be mainly described. Furthermore, in embodiment 2, description of matters common to embodiment 1 will be omitted.

[0035] In the first embodiment, a case where sound data and vibration data related to an elevator are collected has been described, whereas in the second embodiment, a case where sound data and vibration data related to an escalator are collected will be described.

[0036] 10 is a diagram illustrating an example of an escalator according to the second embodiment. The truss 20 and the handle rail 30 are shown. The truss 20 includes a driving machine 21, a collecting device 100a, a sound collecting unit 200, and a vibration detecting unit 300. The collection device 100a, the sound collection unit 200, and the vibration detection unit 300 are connected via a network. The sound collection unit 200 collects sounds generated on the escalator. The vibration detection unit 300 detects vibrations generated on the escalator.

[0037] Next, the functions of the collection device 100a will be described. 11 is a block diagram showing the functions of a collection device according to embodiment 2. The collection device 100a includes a storage unit 110, an instruction unit 120, and a control unit 130. The control unit 130 further includes an association unit 133. The function of the association unit 133 will be described later.

[0038] Next, the process executed by the collection device 100a will be described with reference to a flowchart. FIG. 12 is a diagram illustrating an example of a flowchart of a process executed by the collection device according to the second embodiment. (Step S21) The instruction unit 120 transmits a transmission command to the control unit 130. The transmission command is a command to transmit sound data and vibration data. The transmission command is also referred to as a first transmission command. (Step S22) When the first control unit 131 receives a transmission command from the instruction unit 120, it transmits the transmission command to the sound collection unit 200. The transmission command is a command to transmit sound data. The transmission command is also referred to as a second transmission command. When the sound collection unit 200 receives the transmission command, it transmits the sound data to the collection device 100a.

[0039] (Step S23) The first control unit 131 determines whether or not a change in the clock signal has been detected. If a change in the clock signal has been detected (i.e., if sound data has been detected), the process proceeds to step S24. The first control unit 131 also transmits the sound data to the association unit 133. If a change in the clock signal has not been detected, the first control unit 131 waits until a change in the clock signal is detected. (Step S24) The second control unit 132 transmits a transmission command to the vibration detection unit 300. The transmission command is a command to transmit vibration data. The transmission command is also referred to as a third transmission command. When the vibration detection unit 300 receives the transmission command, it transmits the vibration data to the collection device 100a.

[0040] (Step S25) The second control unit 132 determines whether or not vibration data has been detected. If vibration data has been detected, the process proceeds to step S26. If vibration data has not been detected, the second control unit 132 waits until vibration data is detected. (Step S26) The second control unit 132 transmits the vibration data to the association unit 133.

[0041] (Step S27) The association unit 133 associates the sound data after a time period corresponding to the distance between the sound collection unit 200 and the vibration detection unit 300 with the vibration data. The processing of the association unit 133 will be described in detail. First, the location where sound (i.e., the sound to be measured) occurs on the escalator is the location where vibration occurs. For example, vibrations may occur on the wheels, the handle rail 30, etc. The vibration detection unit 300 is installed at the location where vibration occurs. As described above, the location where sound occurs on the escalator is the location of the vibration detection unit 300. The sound collection unit 200 is separated from the vibration detection unit 300. For example, if the distance between the sound collection unit 200 and the vibration detection unit 300 is 10 m, the sound collection unit 200 collects sound approximately 29 milliseconds later (≒10 m / 346.5 m / s). Note that "346.5 m / s" is the speed at which sound travels when the temperature is 25 degrees. In this way, the timing at which the sound collection unit 200 collects sound and the timing at which the vibration detection unit 300 detects vibration do not match. Therefore, the association unit 133 associates the vibration data with the sound data after a time (e.g., 29 milliseconds) depending on the distance (e.g., 10 m) between the sound collection unit 200 and the vibration detection unit 300. For example, the association unit 133 associates the vibration data at 1:00 PM with the sound data at 29 milliseconds after 1:00 PM. In this way, the sound data and vibration data at the same time are associated with each other.

[0042] (Step S28) Associating unit 133 stores the associated data in storage unit 110 via instruction unit 120.

[0043] Furthermore, association unit 133 may store the associated data in storage unit 110 without going through instruction unit 120. The instruction unit 120 or the control unit 130 may analyze the data stored in the storage unit 110. If the analysis result indicates an abnormality, the instruction unit 120 or the control unit 130 may output an alarm.

[0044] According to the second embodiment, the collection device 100a can acquire sound data and vibration data at the same time.

[0045] The above describes a case where sound data and vibration data are collected. The two pieces of data to be collected do not have to be sound data and vibration data. For example, the two pieces of data may be sound data and temperature data. For example, the contents described in the first and second embodiments can be applied to a case where sound data and temperature data are collected. Moreover, the contents described in the first and second embodiments can also be applied to the case where three or more pieces of data are collected.

[0046] The features of the above-described embodiments can be combined with each other as appropriate. [Explanation of symbols]

[0047] 11, 12 guide rail, 13 elevator shaft, 20 truss, 21 drive machine, 30 handle rail, 100 collection device, 100a collection device, 110 memory unit, 120 instruction unit, 130 control unit, 131 first control unit, 132 second control unit, 133 association unit, 200 sound collection unit, 300 vibration detection unit, 900 collection device, 910 instruction control unit.

Claims

1. A collection device connected to a first device that is a device that transmits first data and a second device that is a device that transmits second data via a network, A control unit; an instruction unit that transmits a first transmission command, which is a transmission command for transmitting the first data and the second data, to the control unit; and The control unit When the first transmission command is received, a second transmission command which is a transmission command for the first data is transmitted to the first device; When the first data is detected, a third transmission command which is a transmission command for the second data is transmitted to the second device. Collection device.

2. The sampling rate of the first data is higher than the sampling rate of the second data. The collection device of claim 1 .

3. the first data is sound data indicating a sound in an elevator, the second data is vibration data indicating vibration of an elevator car present in the elevator; 3. A collection device according to claim 1 or 2.

4. the control unit associates the first data with the second data after a time period according to a distance between the first device and the second device; the first data is sound data indicating a sound generated on an escalator, the second data is vibration data indicating vibrations occurring in the escalator; 3. A collection device according to claim 1 or 2.

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