JP2015065572A - Radio communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a radio communication system which can prevent idle communication by a transmission part caused by time lag of a timer which counts an intermittent reception interval, and which operates in a power saving manner.SOLUTION: A radio communication system for transmitting/receiving a radio signal between a body and a remote controller comprises: a remote controller including a remote control transmission part, a remote control receiving part and a remote control communication control part for controlling an operation between the remote control transmission part and the remote control receiving part; and a body including a body receiving part, a body transmission part and a body communication control part for controlling an operation between the body receiving part and the body transmission part. The remote control communication control part stores a frame value as a target frame value by remote control timer means when the remote control receiving part receives a reception completion signal, and subsequently drives the remote control transmission part when the count of the remote control timer means reaches a frame value previous to the target frame value after a user operation occurs.

Description

  The present invention relates to a wireless communication system that transmits and receives wireless signals between a main body and a remote controller.

  Conventionally, there is a wireless communication system described in Patent Document 1 that transmits and receives wireless signals between two wireless devices. In the conventional system described in Patent Document 1, each radio station intermittently activates a reception circuit to check whether a desired radio signal (radio signal transmitted by another radio station) can be received, If the radio signal is not captured, the average power consumption is greatly reduced by immediately stopping the receiving circuit and shifting to the standby state.

  However, when the intermittent reception operation is performed as described above, the timing of receiving the radio signal that should be received is delayed by the intermittent reception interval of the reception circuit. Therefore, the intermittent reception interval cannot be simply extended for the purpose of reducing power consumption.

JP 2008-176515 A

  Accordingly, the present inventor has developed a wireless communication system that learns the timing at which the receiving circuit is activated and transmits a radio signal in accordance with the timing at which the receiving circuit is activated.

  However, the timer installed in the remote controller that counts the period of the intermittent reception interval always causes a slight error in the count, so that the timing at which the command signal is transmitted gradually shifts in accordance with the activation timing of the receiving circuit. . And, due to the accumulation of the error, the start timing and the transmission timing of the reception circuit are shifted, the predetermined circuit is transmitted at an incorrect timing when the reception circuit is stopped, the reception circuit cannot receive the signal, A new problem has arisen that wasteful energy is consumed.

  The present invention has been made in view of the above circumstances, and an object thereof is to prevent useless communication of a transmission unit due to accumulation of errors in a timer that counts intermittent reception intervals, thereby saving power. It is to provide a wireless communication system that operates.

  One aspect of the present invention is a wireless communication system that transmits and receives a wireless signal between a main body and a remote controller, the remote controller transmitting unit that transmits a command signal based on a user's operation, and the operation of the remote controller transmitter. A remote controller that is driven based on the remote control receiving unit that receives a reception completion signal transmitted from the main body, and a remote control communication control unit that controls operations of the remote control transmitting unit and the remote control receiving unit; A main body receiving unit that receives the command signal transmitted from the remote control, a main body transmitting unit that transmits a reception completion signal to the remote control when the main body receiving unit receives the command signal, the main body receiving unit, and the A main body communication control unit that controls an operation with the main body transmission unit, wherein the remote control communication control unit receives the reception completion signal by the remote control reception unit. In the wireless communication system in which the remote control transmission unit is driven until the main body communication control unit intermittently drives the main body reception unit at a predetermined cycle, the remote controller transmits one cycle of the cycle to a predetermined frame. Remote control timer means for dividing and repeating the count, and the remote control communication control section stores the frame value in the remote control timer means at the time when the remote control receiving section receives the reception completion signal as a target frame value, and thereafter The wireless communication system is characterized in that the remote control transmission unit is driven when the count of the remote control timer means reaches a frame that is a prescribed number of frames before the target frame value after a user operation occurs.

  Therefore, the remote control prevents the reception error to the main unit by driving the remote control transmission unit until receiving the reception completion signal, but stores the time when the remote control reception unit receives the reception completion signal as a frame value. Since the target frame value is set at the timing when the main body receiving unit is driven, the remote control communication control unit can always transmit a predetermined command signal at the timing when the main body receiving unit is driven, and the remote control receiving unit receives the reception completion signal. Then, the remote control transmission unit is stopped, so that the drive time of the remote control transmission unit can be shortened and the remote control transmission unit can be operated with reduced power consumption. Further, even if the timing at which the main body receiving unit is driven deviates before the target frame value, useless energy is not consumed.

  Further, in a selective aspect of the present invention, the remote controller includes an internal power source or an external power source that supplies power to the remote control communication control unit via a power line connected to the remote control communication control unit, and the internal power source. Or a remote control unit that controls power supply from an external power source, wherein the remote control unit determines that the remote control receiving unit has received a reception completion signal from the remote control communication control unit, and the internal power source Alternatively, based on the external power supply, the remote control receiving unit changes the length of time from when the remote control receiving unit receives a reception completion signal until the power supply from the internal power supply or the external power supply stops, and the remote control communication control The unit determines whether the power source is the internal power source or the external power source based on the length of time, and selects any one of the plurality of control methods stored in the remote control communication control unit. A wireless communication system, characterized in that the control method can be selected for.

  Therefore, the remote control communication control unit can determine whether the power source is an internal power source or an external power source from the information on the existing power source line, so there is no need for a communication line for transmitting power source type information. The optimum control method can be selected.

  Further, in a selective aspect of the present invention, the main body includes an internal power source or an external power source that supplies power to the main body communication control unit via a power line connected to the main body communication control unit, and the internal power source. Or a main body control unit that controls power supply from an external power source, wherein the main body control unit determines that the main body transmission unit has transmitted a reception completion signal from the main body communication control unit, and the internal power source Alternatively, based on the external power source, the main body transmission unit changes the length of time from when the main body transmission unit transmits a reception completion signal until the power supply from the internal power source or the external power source stops, and the main body communication control The unit can determine whether the internal power supply or the external power supply is based on the length of time, and can select any one of the control methods stored in the main body communication control unit. Do It is a line communication system.

  Therefore, the main body communication control unit can determine whether the power source is the internal power source or the external power source from the information on the existing power line, so there is no need for a communication line for transmitting power type information, and each power source The optimal control program can be selected.

  Further, in a selective aspect of the present invention, the main body communication control unit always drives the main body reception unit when the power supply to the main body communication control unit is an external power source, and the main body communication control unit A wireless communication system in which a reception unit is intermittently driven at a predetermined cycle, and the remote control communication control unit intermittently transmits the command signal to the remote control transmission unit until the remote control reception unit receives the reception completion signal. The remote control communication control unit determines whether the command signal is transmitted a plurality of times until the reception completion signal is received while the communication between the remote control and the main body is completed a predetermined number of times. After the predetermined number of times of communication is completed, the remote control communication control unit determines that the power source for supplying power to the main body communication control unit is an external power source, and the remote control is performed when a user operation occurs. When the transmission unit is driven to transmit the command signal, and it is determined that the number of transmissions is plural, the remote control communication control unit determines that the power source for supplying power to the main body communication control unit is an internal power source, The wireless communication system is characterized in that the remote control transmission unit is driven when the count of the remote control timer means reaches a frame that is a prescribed number before the target frame value.

  Therefore, the remote control communication control unit can determine the type of power supply that supplies power to the main unit communication control unit based on whether or not the command signal is transmitted a plurality of times. Therefore, when the user's operation occurs, the remote control transmission unit is activated. When the internal power supply is used, the main unit reception unit operates intermittently, so the remote control transmission unit is driven when the count is reached. By doing so, an optimal control method can be taken.

  According to the wireless transmission system of the present invention, it is possible to prevent useless communication of the transmission unit due to the time lag of the timer that counts the intermittent reception interval, and it is possible to provide a wireless communication system that operates with low power consumption.

The external appearance perspective view which shows the toilet room in which the sanitary washing apparatus which concerns on one Embodiment of this invention is installed. The block diagram showing the main structures of a radio | wireless communications system. The timing chart figure for demonstrating the method in which the remote control transmission part of one Embodiment of this invention learns reception timing. The flowchart figure which illustrates the specific example for demonstrating the method in which the remote control transmission part of one Embodiment of this invention learns reception timing. The timing chart figure explaining the operation | movement about the correction method of the transmission timing of one Embodiment of this invention. The flowchart figure which illustrates the specific example about the correction method of the transmission timing of one Embodiment of this invention. The flowchart figure which illustrates the specific example about the power source classification judgment method of the remote control or main body of one Embodiment of this invention. The flowchart figure which shows the specific example about the power source classification judgment method of a main body with the remote control of one Embodiment of this invention.

  Embodiments of the present invention will be described below with reference to the drawings. In addition, in each drawing, the same code | symbol is attached | subjected to the same component and detailed description is abbreviate | omitted suitably.

  The present invention is applicable to a device using wireless communication, and a case where the wireless communication system is applied to a toilet device will be described as an example of the embodiment.

  FIG. 1 is an external perspective view showing a toilet room in which a sanitary washing device according to an embodiment of the present invention is installed. FIG. 2 is a block diagram showing the main configuration of a wireless communication system, and FIG. 3 is a flowchart illustrating a specific example for explaining a method of learning a reception timing by a remote control transmission unit according to an embodiment of the present invention. FIG. 4 is a flowchart illustrating a specific example for explaining a method of learning the reception timing by the remote control transmission unit according to the embodiment of the present invention, and FIG. 5 is a transmission timing update method according to the embodiment of the present invention. FIG. 6 is a flowchart illustrating a specific example of a transmission timing update method according to an embodiment of the present invention, and FIG. 7 is a remote control or main body according to an embodiment of the present invention. FIG. 8 is a flowchart illustrating a specific example of the power source type determination method of FIG. 8, and FIG. Example is a flow chart showing the.

  As shown in FIG. 1, a sanitary washing device 1 and a hand washing place 11 are respectively installed in the toilet room 10. The sanitary washing device 1 is installed on the back floor in the toilet room 10, and the hand washing place 11 is installed on the front side in the toilet room 10.

  The sanitary washing device 1 includes a toilet bowl 2 made of earthenware, a casing 3 made of synthetic resin, a toilet seat 4 and a toilet lid 5.

  The casing 3 is provided behind the toilet 2, and the casing 3 incorporates electrical components such as a local cleaning nozzle device (not shown), a local drying device (not shown), and a control device (not shown). Yes. The toilet seat 4 and the toilet lid 5 are pivotally supported by a toilet seat rotating shaft and a toilet lid rotating shaft provided in the casing 3, and both are rotatably attached to the upper portion of the casing 3.

  The remote controller 20 is installed on the wall surface of the toilet room 10 next to the sanitary washing device 1. The remote controller 20 can be operated in a state where a user (hereinafter also referred to as “person”) is sitting on the toilet seat 4 or a user is standing in front of the sanitary washing device 1 and is not in the way. Since it needs to be installed, it is detachably installed at the position near the height of the shoulder of the user sitting on the toilet seat 4 on the wall of the toilet room 10 next to the sanitary washing device 1 (one of the left and right walls). . The remote controller 20 includes operation buttons 21 operated by the user to open and close the toilet seat 4 and the toilet lid 5 in addition to the functions of large washing, small washing, anal washing, bidet washing, and hot air drying. It has been. In the present embodiment, the power source of the remote controller 20 uses a battery as an example, and transmits a command signal of the operation button 21 to the sanitary washing device 1 by radio communication such as radio waves or infrared rays.

  Next, as shown in FIG. 2, the configuration of the wireless communication system will be described. Inside the casing 3 of the sanitary washing device 1 which is a main body, a main body side communication system 30 for receiving a command signal from the remote controller 20 and performing a predetermined operation is incorporated. The main body side communication system 30 receives a command signal from the remote controller 20, a main body receiver 34 that transmits a reception completion signal to the remote controller 20 when the command signal is received, and a main body receiver 34 and a main body transmission. The main body communication control section 38 that controls the operation of the section 36 and the main body timer means 40 that repeatedly counts a predetermined period. Electric power for driving the main body side communication system 30 is supplied from the commercial power source 54 via the main body power line 52, and the main body control unit 56 controls the supply of electric power.

  On the other hand, a remote control side communication system 42 is built in the remote controller 20 so that the user presses the operation button 21 and transmits a command signal based on the operation button 21 to the sanitary washing device 1. The remote control side communication system 42 includes a remote control transmission unit 44 that transmits a command signal based on a user operation, and a remote control reception unit that is driven immediately after the operation of the remote control transmission unit 44 and receives a reception completion signal from the main body transmission unit 36. 46, a remote control communication control unit 48 for controlling operations of the remote control transmission unit 44 and the remote control reception unit 46, and remote control timer means 50 for repeatedly counting a predetermined cycle. Electric power for driving the remote control side communication system 42 is supplied from a battery 60 which is an internal power supply via a remote control power line 58, and the power supply is controlled by the remote control control unit 62. In the embodiment of the present invention, the power of the sanitary washing device 1 is the commercial power source 54 that is an external power source, and the power of the remote controller 20 is the battery 60 that is an internal power source, but is not limited thereto. The internal power supply includes a battery and a power generation type.

  Next, as shown in FIG. 3, the operation of the wireless communication system in the main body receiver 34 will be described in an embodiment of the present invention. The main body timer means 40 repeatedly counts the period from 0 second to 1 second, divides 1 second into 10 and assigns the frames from frame 0 to frame 9 (0.1 seconds / frame) to each, Is notified to the main body communication control unit 38. The timing of driving the main body receiving unit 34 is based on the main body timer means 40, and the main body receiving unit 34 is driven while the frame value is the frame 7, so that the sanitary washing device 1 is in a reception standby state. When the frame value of the main body timer means 40 reaches frame 8, the main body communication control unit 38 stops driving the main body receiving unit 34. When the count advances and the frame value becomes frame 7 again, the main body communication control unit 38 drives the main body reception unit 34 to enter a reception standby state. By repeating the above and driving the main body reception unit 34 intermittently, it is possible to suppress power consumption. Note that the time of one cycle and the number of frame divisions are not limited to this, and are set as appropriate by the designer.

  In addition, the remote control communication control unit 48 drives the remote control transmission unit 44 for a predetermined time from the time point a1 when the operation button 21 is pressed by the user, and transmits a command signal to the main body reception unit 34. Thereafter, the remote control receiving unit 46 is driven for a predetermined time, and these are alternately repeated until the time point a2 when the remote control receiving unit 46 receives the reception completion signal. At time a2, a reception completion signal is transmitted from the main body transmission unit 36 to the remote control reception unit 46, and the remote control reception unit 46 receives the signal, and the remote control communication control unit 48 controls the remote control of the remote control timer means 50 at time a2. The frame value of the counter is learned to be the timing at which the main body reception unit 34 is driven, and the frame value of the remote control counter at time a2 is set as the target frame value. That is, in this embodiment, the target frame value is set to frame 2 of the remote control counter.

  Once the target frame value is set, the remote control transmission unit 44 does not transmit a command signal until frame 1 which is the previous frame value of the target frame value of the remote control counter. For example, even if the operation button 21 is pressed by the user at time a3 in FIG. 3, the command signal is not transmitted immediately, but transmission is started from time a4 (frame 1). That is, the remote control communication control unit 48 can transmit the command signal at the timing when the main body reception unit 34 is in the reception standby state. Accordingly, since the command signal is not transmitted from the remote control transmission unit 44 when the main body reception unit 34 is not in the reception standby state, the command signal is received with the minimum necessary number of transmissions, and the consumption of the battery 60 is suppressed. be able to. The transmission timing of the remote controller is set not only to the previous frame but also to a frame value that can be derived by a predetermined calculation method.

  Next, as shown in FIG. 4, a method in which the remote control communication control unit 48 of the remote controller 20 learns the drive timing of the main body reception unit 34 will be described using a flowchart. When the remote controller 20 is activated, the value of the target frame, which is the timing for transmitting the command signal, is reset (S1). Next, similarly to the main body timer means 40, the remote controller timer means 50, which counts by dividing one second into 10 frames, is started (S2). Next, the remote control communication control unit 48 determines whether or not the operation button 21 has been pressed by the user (S4). When the operation button 21 is pressed, the remote control communication control unit 48 drives the remote control transmission unit 44 and continues to transmit the command signal for 0.05 seconds (S6). Next, the remote control receiver 46 is driven to enter a reception standby state for 0.05 seconds (S8). It is determined whether or not the remote control receiving unit 46 has received the reception completion signal transmitted from the main body transmission unit 36 during the reception standby state (S10). If not received, the command signal is transmitted again for 0.05 seconds. to continue. On the other hand, if it is received, the frame value at the time of reception is stored in the remote control communication control unit 48 as the target frame value (S12). Thus, the target frame value is set, and the remote control communication control unit 48 can transmit the command signal at the timing when the main body reception unit 34 is in the reception standby state. Accordingly, since the command signal is not transmitted from the remote control transmission unit 44 when the main body reception unit 34 is not in the reception standby state, the command signal is received with the minimum necessary number of transmissions, and the consumption of the battery 60 is suppressed. be able to.

  Next, when the reception standby state of the main body reception unit 34 and the transmission timing of the remote control transmission unit 44 are shifted due to the count error of the main body timer means 40 or the remote control timer means 50, the target frame value correction method of the remote control communication control unit 48 will be described. explain. When the target frame of the remote control counter is set to frame 2, the remote control counter starts transmitting a command signal from the previous frame of frame 2, and when the remote control counter transmits a command signal in frame 2, the main body counter frame 7 of the main body timer means 40 The receiving unit 34 is driven and the transmission / reception timing is correct (a5). However, with the passage of time, the difference between the counters causes an error between the remote control counter and the main body counter, and the timing is shifted. As a result, when the command signal is transmitted from frame 1 which is the frame preceding frame 2 of the remote control counter, the main body reception unit 34 is driven by the frame 7 of the main body counter, and immediately from the main body transmission unit 36. The remote control receiving unit 46 receives the reception completion signal, and the target frame is updated to frame 1 of the remote control counter (a6). At that time, the transmission timing of the next command signal is to transmit the command signal from time a7 (frame 0).

  The processing of the remote control communication control unit 48 regarding the target frame value correction method will be specifically described with reference to FIG. First, it is determined whether or not the operation button 21 has been pressed by the user (S14). If the button is pressed, it is determined whether or not the current frame value matches the previous target frame value stored (S16). If they match, a command signal is transmitted from the remote control transmitter 44, and if they do not match, it waits until it matches the target frame value. The flow from command signal transmission to reception standby is the same as S6 and S8 described above (S18 and S20). Then, it is determined whether or not the remote control receiver 46 has received a reception completion signal from the main body transmitter 36 (S22). If not, it is determined whether or not a certain time has passed (S24). If not, the process returns to S18 and is repeated. If it has elapsed, the process is terminated without changing the target frame value (S26). The reason for determining whether or not the predetermined time has elapsed is to prevent the command signal from being continuously transmitted when the command signal does not reach the main body receiver 34 due to an obstacle or the like. The fixed time is, for example, about one cycle (one second). Next, when the remote control receiving unit 46 receives the reception completion signal, the current frame value is compared with the target frame value (S28). If they match, the target frame value is not changed and the process is terminated (S30). If not, the target frame value is changed to the frame value at the time when the remote control receiving unit 46 received the reception completion signal, and the process is terminated (S32). If the transmission timing of the remote control transmission unit 44 is set to the target frame value instead of before the target frame value in S16, reception waiting of the main body reception unit 34 is caused by the count error of the main body timer means 40 or the remote control timer means 50. When the state timing deviates before the target frame value, the remote control communication control unit 48 repeats transmission and reception operations for approximately one cycle. By transmitting from the previous one of the target frame value as in the embodiment, the target frame value can be changed with less energy than the energy of repeating transmission / reception for one period.

  The main body side communication system 30 or the remote control side communication system 42 is a modular component with high versatility. In the present embodiment, the remote controller and the main body are described separately for convenience of explanation. Even if the remote control side communication system 42 is exchanged, it is driven without any problem. For this reason, the main body communication control unit 38 or the remote control communication control unit 48 stores a plurality of communication control methods so as to be compatible with either the sanitary washing device 1 or the remote control 20, and appropriately communicates with the connected system. The control method is set.

  The communication system connected to the sanitary washing apparatus 1 is set to the communication control method for the main body, and the communication system connected to the remote controller 20 is set to the communication control method for the remote control. I do n’t know. By knowing whether the internal power supply or external power supply, communication control can be changed appropriately. In the case of an internal power supply, a control method that intermittently drives the receiving unit to reduce energy consumption, or in the case of an external power supply, from the viewpoint of reaction speed from when the operation button 20 is pressed until the operation is executed. From this, it is possible to perform appropriate communication control according to the type of power source by always driving the receiving unit and using a control method in which the operation button 2 is operated and immediately transmitted if there is an operation.

  Next, as shown in FIG. 7, a method for determining whether the power source of the remote controller 20 is an external power source or an internal power source will be described. Information on whether the internal power supply or the external power supply is stored in advance in the remote control unit 62, and the information is transmitted to the remote control communication control unit 48 via the remote control power line 58. The remote control control unit 62 starts counting of the remote control timer means 50 when the remote control receiving unit 46 receives the reception completion signal from the main body transmission unit 36 (S40). Next, it is determined whether power supply from the remote control power line 58 has been cut off (S41). If the power is supplied, the process proceeds to the next process as it is. If the power is cut off, there is no power and the process is forcibly terminated. Next, it is determined whether or not a predetermined time T1 has passed (S42). When the predetermined time T1 has elapsed, the remote control communication control unit 48 determines that the power source of the remote controller 20 is an internal power source. If not, the remote control communication control unit 48 returns to the process before S41 and repeats the processes after S41. Next, the remote control communication control unit 48 sets the power source as the internal power source (S44), and determines again whether the power supply from the remote control power line 58 has been cut off (S45). If the power is supplied, the process proceeds to the next process as it is. If the power is cut off, there is no power and the process is forcibly terminated. Further, if the power supply from the remote controller 62 does not stop, it is determined whether or not the predetermined time T2 has elapsed (S46). When the predetermined time T2 elapses, the remote control communication control unit 48 sets the power source as an external power source (S48) and ends. If not, the process returns to before S45 and repeats the processes after S45. The time relationship between the predetermined time T1 and the predetermined time T2 is T1 <T2. When determining whether the power source of the sanitary washing device 1 is an external power source or an internal power source, if the timing of S40 is counted from the time when the main body receiving unit 34 receives the command signal from the remote control transmitting unit 44, the same thereafter. It can be judged by the flow.

  As described above, determining whether the power source is the external power source or the internal power source using the remote control power line 58 eliminates the need for a communication line for transmitting power source type information, leading to cost reduction. Not only the power source type information but also information such as the remote control input means may be transmitted to the remote control communication control unit 48. Specific examples of the input means include an infrared sensor type and a mechanical switch type. Based on such information, communication control between the sanitary washing device 1 and the remote controller 20 can be selected as an optimal control method.

  Next, a method for the remote controller 20 to grasp the power supply type of the sanitary washing device 1 will be described. As described above, the remote control communication control unit 48 intermittently transmits a command signal from the remote control transmission unit 44 when the main body reception unit 34 is driven. When the power source of the sanitary washing device 1 is an external power source, the main body communication control unit 38 always drives the main body receiving unit 34 to increase the reaction speed, and is always in a reception standby state. On the other hand, when the power source of the sanitary washing device 1 is an internal power source, the main body communication control unit 38 intermittently drives the main body receiving unit 34 to reduce energy consumption and is in a standby state at a constant cycle. In the case of an external power supply, since it is always in a reception standby state, the command signal can always be received, and once transmitted, communication is reliably performed. In the case of an internal power supply, communication may not be established only by transmitting a command signal once due to a count error of the timer means. From the difference, the remote control communication control unit 48 grasps the power source type.

  As shown in FIG. 8, when the remote control communication unit 48 receives the reception completion signal from the main body transmission unit 36 by the remote control reception unit 46, the remote control communication unit 48 regards the communication as being completed, and determines whether the communication is completed (S50). If the communication is completed, the communication completion count is increased (S52). If the communication is not completed, the process is terminated. Next, when the communication is completed, it is determined whether or not there are a plurality of command signal transmissions until the reception completion signal is received (S54). If the command signal is transmitted a plurality of times, the number of times of transmission is increased (S56), and the process proceeds to the next process. If the command signal is not transmitted a plurality of times, in other words, if the command signal is transmitted once, the process proceeds to the next process. move on. That is, the number of times of multiple transmissions is increased once when the command signal is transmitted twice or more and communication is completed before the reception completion signal is received. Next, it is determined whether or not the number of communication completions is a predetermined number or more (S58). If it is equal to or greater than the predetermined number, it is determined whether or not the number of multiple transmissions is one or more (S60). If it is less than the predetermined number of times, the process is terminated. If the number of multiple transmissions is 1 or more, the power supply of the sanitary washing device 1 is determined to be an internal power supply (S62). If the number of multiple transmissions is less than 1, that is, if there are no multiple transmissions, the sanitary It is determined that the power source of the cleaning device 1 is an external power source (S64). Finally, the communication completion count and update count are returned to the initial values (S65). From the above flow, the remote control communication control unit 48 can determine the power source type of the sanitary washing device 1 and perform a communication control method based on the type. Specifically, when the power source of the sanitary washing device 1 is an external power source, the remote control communication control unit 48 drives the remote control transmission unit 44 when a user operation occurs, and the power source of the sanitary washing device 1 is an internal power source. In this case, the remote control communication control unit 48 performs a communication control method for driving the remote control transmission unit 44 from the time point of the previous frame of the target frame value. The remote control communication control unit 48 can make a determination based on the number of updates of the target frame value without performing communication of the power source type from the main body transmission unit 36, so communication can be saved and energy saving can be achieved.

  Although the embodiment of the present invention has been described in detail above, this is merely an example, and the present invention can be configured in various forms without departing from the spirit of the present invention.

1 Sanitary washing device (main unit)
DESCRIPTION OF SYMBOLS 2 Toilet 3 Casing 4 Toilet seat 5 Toilet lid 10 Toilet room 11 Hand washing place 20 Remote control 21 Operation button 30 Main body side communication system 34 Main body receiving part 36 Main body transmission part 38 Main body communication control part 40 Main body timer means 42 Remote control side communication system 44 Remote control transmission Unit 46 remote control receiving unit 48 remote control communication control unit 50 remote control timer means 52 main unit power line 54 commercial power source 56 main unit control unit 58 remote control power line 60 battery 62 remote control unit

Claims (4)

A wireless communication system for transmitting and receiving wireless signals between a main body and a remote control,
A remote control transmitter for transmitting a command signal based on a user's operation;
A remote control receiving unit that is driven based on the operation of the remote control transmitting unit and receives a reception completion signal transmitted from the main body;
A remote control communication control unit for controlling operations of the remote control transmission unit and the remote control reception unit;
A remote control with
A main body receiver that receives the command signal transmitted from the remote control;
When the main body reception unit receives the command signal, a main body transmission unit that transmits a reception completion signal to the remote control,
A main body communication control section for controlling operations of the main body receiving section and the main body transmitting section;
A main body with
The remote control communication control unit drives the remote control transmission unit until the remote control reception unit receives the reception completion signal, and the main body communication control unit wirelessly drives the main body reception unit intermittently at a predetermined cycle. In a communication system,
The remote control includes remote control timer means for dividing one cycle of the cycle into a predetermined number of frames and repeating counting,
The remote control communication control unit stores a frame value in the remote control timer means at the time when the remote control receiving unit receives the reception completion signal as a target frame value, and then the target frame after a user operation occurs A wireless communication system, wherein the remote control transmission unit is driven when the count of the remote control timer means reaches a frame that is a prescribed number before the value. The remote control is an internal power source or an external power source that supplies power to the remote control communication control unit via a power line connected to the remote control communication control unit,
A remote control unit that controls power supply from the internal power source or the external power source, and
The remote control control unit determines that the remote control reception unit has received a reception completion signal from the remote control communication control unit, and the remote control reception unit has received a reception completion signal based on the internal power supply or the external power supply From the time point, change the length of time until the power supply from the internal power supply or the external power supply stops,
The remote control communication control unit determines whether the internal power supply or the external power supply is based on the length of time, and selects any one of the control methods stored in the remote control communication control unit The wireless communication system according to claim 1, wherein the wireless communication system can be used. The main body has an internal power source or an external power source that supplies power to the main body communication control unit via a power line connected to the main body communication control unit,
A main body control unit that controls power supply from the internal power source or the external power source, and
The main body control unit determines that the main body transmission unit transmits a reception completion signal from the main body communication control unit, and the main body transmission unit transmits a reception completion signal based on the internal power source or the external power source. From the time point, change the length of time until the power supply from the internal power supply or the external power supply stops,
The main body communication control unit determines whether the internal power supply or the external power supply is based on the length of time, and selects any one of the control methods stored in the main body communication control unit The wireless communication system according to claim 1, wherein the wireless communication system can be used. When the power supply to the main body communication control unit is an external power source, the main body communication control unit always drives the main body reception unit, and when the power supply is an internal power source, the main body communication control unit intermittently drives the main body reception unit at a predetermined cycle. In the wireless communication system, the remote control communication control unit intermittently transmits the command signal to the remote control transmission unit until the remote control reception unit receives the reception completion signal.
The remote control communication control unit determines whether or not the command signal is transmitted a plurality of times until the reception completion signal is received while the communication between the remote control and the main body is completed a predetermined number of times. After the number of times communication is completed,
When it is determined that the number of transmissions is not plural, the remote control communication control unit determines that the power source for supplying power to the main body communication control unit is an external power source, and transmits the remote control when a user operation occurs. Drive the unit to transmit the command signal,
When it is determined that the number of transmissions is plural, the remote control communication control unit determines that the power source for supplying power to the main body communication control unit is an internal power source, and sets the frame to a frame that is a specified number before the target frame value. 2. The wireless communication system according to claim 1, wherein when the count of the remote control timer means reaches, the remote control transmission unit is driven.

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