JPWO2017203640A1 - Remote control device for refrigeration system - Google Patents

Abstract

  The remote control device for a cooling / heating system according to the present invention monitors a communication line for communication connection with the cooling / heating system, determines a noise level indicating the magnitude of noise generated in the communication line, and records data And a control processing device that causes the recording device to record the data of the noise level determined by the monitoring device together with the time data.

Description

  The present invention relates to a remote control device for a cooling system that performs input support, display, and the like for operations, settings, and the like for a cooling system such as an air conditioner, a cooling device, and a water heater. In particular, the present invention relates to detection of noise related to communication of a remote control device.

  For example, an indoor unit such as an air conditioner is often installed at a high position in a room. In addition, heat source equipment such as a water heater is often installed outdoors. As described above, a cooling system such as an air conditioner, a cooling device, or a water heater is a place where an operator, a setter, etc. (hereinafter referred to as a user) actually performs operation, settings, etc. (hereinafter referred to as an operation). It is often installed at a remote location. Therefore, a remote control device is generally installed in order to perform operations such as operation or stop, operation such as mode switching, schedule setting, and the like (see, for example, Patent Document 1).

  The remote control device performs operation input support for the cooling system, display to the user, and the like. For this reason, the remote control device has input devices such as buttons and keys, and display devices such as a liquid crystal display and LEDs. In particular, recently, there is also a remote control device in which the liquid crystal display area is a dot matrix display and can be freely displayed.

  For example, one or a plurality of remote control devices are connected to an indoor unit such as one air conditioner, or one or a plurality of remote control devices are connected to a plurality of indoor units. Then, for example, it is attached to a wall or the like for each floor or for each partition. The remote control device includes buttons such as an operation or stop button, an operation mode button, a wind direction button, and a wind speed button. Characters and the like are printed on each button or around the button so that the name of each button, the content of the operation, and the like can be understood. The user looks at the printed characters and performs desired operations such as operation or stop of the indoor unit, operation mode, wind direction, wind speed, and the like with the dedicated buttons. For example, when the current operation state of the indoor unit is “operation, 23 ° C., cooling, downwind”, in order to change to “operation, 25 ° C., heating, wind improvement”, the set temperature increase button 2 Press the button once (23 ° C → 24 ° C → 25 ° C), press the operation mode button three times (cooling → dry → air blowing → heating), and press the wind direction button once (wind down → wind improvement). Do.

  On the other hand, there are often no dedicated buttons when shifting to the schedule setting menu of an indoor unit, performing a trial run, or setting detailed operations for the remote control device main body. For example, when shifting to the setting of the remote control device main body, there are those that switch the setting menu by simultaneously pressing the buttons having different meanings, such as simultaneously pressing the operation switching button and the timer ON / OFF button for 3 seconds or more.

  In addition, a fixed switch is provided at the bottom of the display unit, and the switch name is displayed on the display unit. If the desired switch name cannot be obtained, the menu can be switched separately from the fixed switch until the desired display is displayed. Press the key. When a desired switch name is obtained, there is a remote control device that selects a setting item with a fixed switch at the bottom of the display unit and changes a setting value using an up key and a down key separately provided.

  In recent years, there are also remote control devices in which an up / down / left / right key, which is widely used in mobile phones, and a cross key with a push button in the center are arranged. To focus on the display of the setting item menu to be switched or changed, press the specified direction part of the cross key, and press the center push button (decision key) with the focus on the target setting menu. There are some that move the display to the setting screen and perform the desired operation there.

JP 09-152177 A

  Here, the remote control device may be returned to the manufacturer or the like, assuming that an operation abnormality has occurred due to, for example, a defect or a defect. However, when the returned remote control device is confirmed to operate, it often operates normally. This is because, for example, communication between the remote control device and the cooling / heating system is temporarily disabled, and the remote control device that has been displayed as an abnormal condition is exchanged and returned. Therefore, basically, the remote control device is normal.

  For example, if a power line is in parallel on a communication line that connects a remote control device and a cooling system, noise from the power line may be transmitted to the wiring of the remote control device. Since communication is disturbed and signals are not sent correctly, for example, the remote control device determines that the remote control device, the cooling system, and the like are abnormal, and displays an error message or the like. The user who sees the error message thinks that the remote control device is broken and replaces it.

  Further, the remote control device may be returned even though there is a problem on the side of the cooling system connected to the remote control device. Furthermore, the remote control device may be returned even though there is a problem with the wiring, wiring path, etc. connecting the remote control device and the cooling / heating system. As described above, although the remote control device is normal, it is replaced and the number of returned devices increases.

  Also, for example, when contacting a maintenance company to find out the cause of an abnormality, an observation device such as an oscilloscope is installed, and data is collected and analyzed for 24 hours. Therefore, the burden increases.

  In order to solve the above-described problems, an object of the present invention is to provide a remote control device for a cooling and heating system that can easily perform judgment analysis and the like regarding abnormality of a remote control device.

  The remote control device for a cooling / heating system according to the present invention monitors a communication line for communication connection with the cooling / heating system, determines a noise level indicating the magnitude of noise generated in the communication line, and records data And a control processing device that causes the recording device to record the data of the noise level determined by the monitoring device together with the time data.

  According to this invention, the monitoring device monitors the noise generated on the communication line, the control processing device determines the noise level, and the noise level data is stored in the storage device together with the data at the time when the noise occurred. As a result, it is possible to confirm the magnitude of the noise and the time of occurrence of the noise. For this reason, it becomes easy to identify the cause of the abnormality.

It is a figure which shows the structure which concerns on the communication centering on the remote controller 100 which concerns on Embodiment 1 of this invention. It is a figure which shows the state of the voltage of the communication line 10 in the remote controller 100 which concerns on Embodiment 1 of this invention, and the content of the data memorize | stored in the memory | storage device 104. FIG. In the remote controller 100 which concerns on Embodiment 2 of this invention, it is a figure which shows the display apparatus 101 by which the waveform of the voltage in the communication line 10 was displayed. It is a figure which shows the structure of the remote controller 100 which concerns on Embodiment 3 of this invention.

  Hereinafter, a remote control device for a cooling / heating system (hereinafter referred to as a remote controller) according to an embodiment of the present invention will be described with reference to the drawings. Here, in the following drawings including FIG. 1, the same reference numerals denote the same or corresponding parts, and are common to the whole text of the embodiments described below. And the form of the component represented by the whole specification is an illustration to the last, Comprising: It does not limit to the form described in the specification. In particular, the combination of the components is not limited to the combination in each embodiment, and the components described in the other embodiments can be applied to another embodiment. In the drawings, the size relationship of each component may be different from the actual one. The level of voltage, temperature, pressure, and the like are not particularly determined in relation to absolute values, but are relatively determined in terms of the state and operation of the system and apparatus.

Embodiment 1 FIG.
FIG. 1 is a diagram showing a configuration relating to communication centering on a remote controller 100 according to Embodiment 1 of the present invention. In the first embodiment, a remote controller 100 for a cooling system used for operating the cooling system 1 will be described. Here, the cooling / heating system 1 is a device such as an air conditioner, a refrigerating device, or a hot water supply device that adjusts the temperature to be adjusted to a set temperature. The communication line 10 is a wiring that connects the cooling / heating system 1 and the remote controller 100 for communication and transmits / receives signals between the cooling / heating system 1 and the remote controller 100.

  The remote controller 100 transmits, for example, a signal including operation command data such as operation or stop input by the user, an operation mode of cooling and heating, and a set temperature to the cooling and heating system 1. Further, it receives a signal including data such as the operating state of the cooling system 1 and displays it.

  As illustrated in FIG. 1, the remote controller 100 according to the first embodiment includes a display device 101, a control processing device 102, a communication device 103, a storage device 104, an input device 105, a monitoring device 106, and a timing device 107. . The control processing device 102 performs processing based on data included in the input signal and controls the operation of each device constituting the remote controller 100. In particular, in the first embodiment, the processing of causing the storage device 104 to record the noise level data from the monitoring device 106 and the noise occurrence time data related to the time measurement of the time measuring device 107 is performed.

  The storage device 104 temporarily or long-term stores various data such as data for each unit of the remote controller 100 to perform processing. In particular, the first embodiment is a recording apparatus that records time data and noise level data associated by the control processing apparatus 102, which are data relating to noise.

  The communication device 103 is connected to the communication line 10 and serves as an interface for signal communication between the cooling / heating system 1 and the control processing device 102. For example, the communication device 103 extracts data or the like that the control processing device 102 performs processing from a signal sent via the communication line 10. Further, the data processed by the control processing device 102 is included in the signal and sent to the communication line 10. The display device 101 performs display for the user based on the display signal transmitted from the control processing device 102. In addition, the input device 105 transmits data such as instructions and settings input by the user to the control processing device 102 as input signals.

  The monitoring device 106 monitors the communication line 10 between the cooling system 1 and the remote controller 100 and detects noise generated in the communication line 10 together with a signal. Then, the level of noise generated on the communication line 10 is determined, and noise level data is sent to the control processing device 102. The method for detecting noise is not particularly limited. Here, for example, it is assumed that a signal is sent by changing the voltage of the communication line 10, and the voltage in the communication line 10 is detected at a predetermined sampling period. For example, the sampling period may be adjusted to the frequency of the carrier wave of the signal to be communicated. The time measuring device 107 is a device for measuring time.

  In the remote controller 100 of the first embodiment, the monitoring device 106 determines the level of noise generated in the communication line 10. The monitoring device 106 has data of one or a plurality of threshold voltages set in advance to perform level determination. Then, it is determined whether the voltage in the communication line 10 exceeds the threshold voltage. If it is determined that there is an exceeding threshold voltage, a process for causing the storage device 104 to record the data of the noise level indicated by the threshold voltage and the data of the time measured by the timing device 107 is performed.

  FIG. 2 is a diagram showing the voltage state of the communication line 10 and the content of data stored in the storage device 104 in the remote controller 100 according to Embodiment 1 of the present invention. In FIG. 2, two levels of noise levels, level 1 and level 2, are set. Level 2 has a higher voltage than level 1. The threshold voltage value set as the noise level, the number of settings, and the like are not particularly limited, but the threshold voltage set at level 1 is a voltage that is at least higher than the voltage used for signals related to transmission and reception. Therefore, the transmitted / received signal does not exceed the threshold voltage. And the monitoring apparatus 106 can determine from the noise of the level which does not affect normal communication to the noise by the giant pulse which generate | occur | produces by the lightning.

  Further, the control processing device 102 displays the noise level data and the time data stored in the storage device 104 based on an instruction sent from the input device 105, for example, as shown in FIG. 101 can be displayed.

  As described above, according to the remote controller 100 of the first embodiment, the monitoring device 106 detects noise generated in the communication line 10, and the control processing device 102 sends the determined noise level data together with the time data. Since the data is stored in the storage device 104, the recorded data is analyzed for causes of abnormalities and failures of the cooling system 1 and the remote controller 100, analysis when the abnormality is displayed on the remote controller 100, analysis, etc. It can be used for.

Embodiment 2. FIG.
FIG. 3 is a diagram showing a display device 101 on which a voltage waveform on the communication line 10 is displayed in the remote controller 100 according to Embodiment 2 of the present invention. In the remote controller 100 of the first embodiment described above, the noise level and time data can be recorded in the storage device 104, and the display device 101 can be displayed. In addition to the function of the first embodiment, the remote controller 100 of the second embodiment can display a voltage waveform on the communication line 10 for at least a certain time on the display device 101.

  Here, for example, it is preferable that a limited person such as an administrator can instruct waveform display. Therefore, when the user inputs the set administrator password via the input device 105, a menu related to waveform diagram display is displayed on the display device 101. Then, when the waveform display is instructed from the user via the input device 105, the control processing device 102 is represented by the relationship between time and voltage based on the voltage value data sent from the monitoring device 106. The voltage waveform to be displayed is displayed on the display device 101. Here, although the voltage waveform in the communication line 10 shall be displayed in real time, it is not limited to this. For example, voltage lapse data may be recorded in the storage device 104 and the waveform may be displayed on the display device 101.

  As described above, according to the remote controller 100 of the second embodiment, since the voltage waveform in the communication line 10 can be displayed on the display device 101, for example, an observation device such as an oscilloscope is not separately installed. The user can visually confirm the voltage waveform in the communication line 10. For this reason, the user can observe the state of the communication line 10 in more detail.

  Here, the remote controller 100 according to the second embodiment has been described as being capable of displaying a waveform together with the recording of the noise level and time described in the first embodiment. However, the remote controller 100 is only capable of displaying a waveform. There may be.

Embodiment 3 FIG.
FIG. 4 is a diagram showing the configuration of the remote controller 100 according to Embodiment 3 of the present invention. In FIG. 4, the same reference numerals as those in FIG. 1 are used to perform the same operations as those described in the first embodiment. The remote controller 100 according to the third embodiment displays the cause of noise generated on the communication line 10 on the display device 101. For this reason, the remote controller 100 according to the third embodiment includes a noise data storage device 108 and a verification processing device 109.

  The noise data storage device 108 stores, for example, noise pattern data and noise cause data in association with predetermined noise. The noise pattern data is data indicating a generation pattern such as a noise magnitude, a generation time, a generation cycle, and a waveform. Here, for example, a value obtained by integrating the voltage value of noise is used as data. The noise cause data is data indicating the type and cause of noise.

  The matching processing device 109 matches the noise generated in the voltage of the communication line 10 with the noise pattern and causes the display device 101 to display the corresponding noise type. The verification processing device 109 includes a noise extraction unit 109A, a verification unit 109B, and a cause search unit 109C.

  109 A of noise extraction parts extract the part which becomes noise from the voltage of the communication line 10 as data. As for the extraction method, for example, when the voltage of the communication line 10 exceeds a predetermined threshold, extraction is started and the sampled voltage values are integrated. Then, for example, the process ends when the voltage converges to 0V. The extraction method and the like are not particularly limited. Further, the matching unit 109B compares the noise data extracted by the noise extraction unit 109A with the noise pattern data stored in the noise data storage device 108. Then, the cause search unit 109C searches for noise cause data from the noise data storage device 108 based on the collation result sent from the collation unit 109B, and sends the data to the control processing device 102. The control processing device 102 causes the display device 101 to display the type and cause of noise based on the transmitted noise cause data.

  As described above, according to the remote controller 100 of the third embodiment, the matching processor 109 extracts noise and compares it with the noise pattern data stored in the noise data storage device 108, so that the noise pattern is the same. Since the type and cause of the noise associated with the determined noise pattern are displayed on the display device 101, for example, the generated noise can be quickly identified, and the cause of the abnormality can be found early. it can. For this reason, since correction, improvement, etc. can be performed quickly, it can be expected that the number of returned devices will be reduced assuming that the remote controller 100 is abnormal.

Embodiment 4 FIG.
In the first embodiment and the second embodiment described above, the monitoring device 106 is configured as a separate device from the control processing device 102. In the above-described third embodiment, the verification processing device 109 is further configured as a device different from the control processing device 102. For example, the control processing device 102 may perform processing in at least one of the monitoring device 106 and the verification processing device 109. Further, the control processing device 102 may include a timing device 107, a storage device 104, a noise data storage device 108, and the like.

  Further, in the first embodiment described above, the control processing device 102 determines the level of noise generated in the communication line 10. However, for example, the monitoring device 106 may perform the level determination.

  In the third embodiment, the storage device 104 and the noise data storage device 108 are configured as independent storage devices, but may be configured as a single storage device.

  In the above-described remote controller 100, the noise level and time, the voltage waveform in the communication line 10, the type of noise, the cause, and the like are displayed on the display device 101. However, the present invention is not limited to this. For example, a communication device (not shown) that communicates with a device such as an external computer may be provided, and a signal including processing result data may be transmitted to the external device.

  DESCRIPTION OF SYMBOLS 1 Refrigeration system 10 Communication line 100 Remote controller 101 Display device 102 Control processing device 103 Communication device 104 Storage device 105 Input device 106 Monitoring device 107 Timekeeping device 108 Noise data storage device 109 Verification processing Device, 109A Noise extraction unit, 109B collation unit, 109C Cause search unit.

Claims (5)

A monitoring device for monitoring a communication line for communication connection with the cooling and heating system, and determining a noise level indicating a magnitude of noise generated in the communication line;
A recording device for recording data;
A remote control device for a cooling and heating system, comprising: a control processing device that causes the recording device to record the noise level data determined by the monitoring device together with time data. A display device that performs display based on an instruction from the control processing device;
The remote control device for a cooling / heating system according to claim 1, wherein the control processing device displays noise level data and time data stored in the recording device on the display device. The monitoring device detects a voltage in the communication line;
The remote control device for a cooling / heating system according to claim 2, wherein the control processing device causes the display device to display a waveform of a voltage of the communication line at least for a predetermined time. A display device that performs display based on an instruction from the control processing device;
The monitoring device detects a voltage in the communication line;
The remote control device for a cooling / heating system according to claim 1, wherein the control processing device causes the display device to display a waveform of the voltage of the communication line at least for a predetermined time. A noise data storage device in which noise pattern data and noise cause data in the noise are stored in association with each other;
The noise associated with the noise pattern determined by comparing the noise pattern stored in the noise data storage device with the noise related to the detection of the monitoring device and determined to be the same as the noise related to the detection of the monitoring device The remote control device for a cooling system according to any one of claims 1 to 4, further comprising a verification processing device that searches for cause data.

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