JP2011172112A - Hydraulic apparatus control system - Google Patents

Abstract

The present invention provides a hydraulic equipment control system that increases the reliability of a remote control device.
A hydraulic device and a remote control device for transmitting control content instructed by a user to the hydraulic device by wireless communication, and causing the hydraulic device to perform a predetermined operation corresponding to the control content. In the hydraulic equipment control system, the remote control device includes a switch unit for inputting a predetermined instruction from the user, a power generation unit that generates power when the user instructs the switch unit, A first transmission / reception unit configured to transmit the instruction information selected by the switch unit to the control object using the generated power, and to receive a response signal to the instruction information transmitted from the control object; A display unit including a display element having a memory property that displays the content of the response signal received by one transmission / reception unit using the power obtained by the power generation unit Having.
[Selection] Figure 1

Description

  The present invention relates to a hydraulic equipment control system, and more particularly to a hydraulic equipment control system capable of increasing reliability.

  Conventionally, broadcast relay vehicles and crane trucks are loaded with heavy equipment such as parabolic antennas and cranes on the loading platform, etc., so the balance is lost when heavy equipment moves when the road is unstable or on a muddy road. A mechanism has been proposed that includes a jack mechanism or the like so that the vehicle body does not roll over and keeps the vehicle body horizontal (see, for example, Patent Document 1).

  Such a jack has a plurality of support columns so that the entire vehicle body is kept horizontal and stable. When operating each of these columns, a remote operation for remotely operating a control object (master) that requires an operation from an operator (hereinafter referred to as a “user”) from the user's hand. 2. Description of the Related Art Devices (remote controllers; hereinafter, abbreviated as “remote controllers” as necessary) are known.

  In addition, it is connected with the remote control and the hydraulic control device of the jack which is the control target by wire, the master unit receives the control signal instructed from the remote control based on the user's operation, and based on the received control signal The master unit is controlled. For example, the basic mechanism is to cause a master unit to execute processing corresponding to a switch by pressing a switch (button) provided on the remote controller.

  In addition, although the wireless remote control using infrared rays is considered as the remote control, since the conventional remote control uses a dry battery or the like as a power supply means, the remote control for the master unit may not be possible due to the battery being used by the user. . Conventionally, a remote control device on the wireless transmission side that serves as both a selection or activation switch and a power generation element switch has been disclosed (for example, see Patent Document 2).

JP 11-286392 A JP-T-2001-511924

  According to the above-described conventional method, it is possible to easily wirelessly wireless a device that has been difficult to wirelessly due to a power supply problem. However, in a conventional remote control device, a radio wave is transmitted from a slave unit to a master unit such as a hydraulic control device that is a control target by a user operation of the slave unit such as a remote controller, and the master unit is modulated into the radio wave. However, if the distance between the master unit and the slave unit is large, the output contents of the master unit could not be confirmed. Therefore, it has not been possible to confirm whether or not transmission to the parent device has been reliably performed on the child device side. In addition, even when the distance between the parent device and the child device is short, it is difficult to confirm whether or not transmission can be reliably performed from each child device when there are a plurality of child devices.

  Further, in the prior art, it is impossible to confirm the switch operated by the user in the slave unit and which switch is pressed when there are a plurality of switches.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a hydraulic equipment control system that can increase reliability.

  In order to solve the above problems, the present invention employs means for solving the problems having the following characteristics.

  According to the first aspect of the present invention, the hydraulic device and the control content instructed by the user to the hydraulic device are transmitted by wireless communication, and the hydraulic device performs a predetermined operation corresponding to the control content. In the hydraulic equipment control system having a remote control device for the above, the remote control device generates a power by the switch unit for inputting a predetermined instruction from the user and the user instructing the switch unit. A first power generation unit that transmits the instruction information selected by the switch unit to the control target using the generated power, and receives a response signal for the instruction information transmitted from the control target. A display having a memory property that displays the contents of the response signal received by the transmission / reception unit and the first transmission / reception unit using the power obtained by the power generation unit. A display unit including a child, wherein the hydraulic device receives instruction information obtained from the remote control device and transmits a reception confirmation signal when the instruction information is normally received; and the instruction And a control unit that generates error information when the process for the information is not normally performed and transmits the error information from the transmission / reception unit.

  According to invention of Claim 1, the hydraulic equipment control system which can make reliability high can be provided.

  The invention described in claim 2 is characterized in that the hydraulic device is one or a plurality of hydraulic jacks.

  According to invention of Claim 2, it can operate easily and correctly, seeing a hydraulic jack using a remote control device.

  The invention described in claim 3 is characterized in that the hydraulic device is one or a plurality of antenna poles.

  According to invention of Claim 3, it can operate easily and correctly, seeing an antenna pole using a remote control device.

  The invention described in claim 4 is characterized in that the switch unit is provided with respective switches for selecting start and end of the operation of the hydraulic equipment.

  According to the fourth aspect of the present invention, it is possible to perform a continuous operation or the like by predetermined hydraulic control until the end switch is pressed from the start switch. Also, the user can adjust the start and end timing without depending on the setting of the device.

  According to a fifth aspect of the present invention, the power generation unit includes a power storage unit that is formed of a piezoelectric material and stores power obtained by the piezoelectric material.

  According to the fifth aspect of the present invention, since the electric power generated by the power generation element or the like can be temporarily stored, the electric power can be used when displaying on the display unit.

  According to a sixth aspect of the present invention, the control unit forcibly terminates the hydraulic pressure control when the second transmission / reception unit does not receive an end signal during the hydraulic pressure control for a predetermined time or a predetermined distance. It is characterized by.

  According to the sixth aspect of the present invention, safety can be improved.

  ADVANTAGE OF THE INVENTION According to this invention, the hydraulic equipment control system which can make reliability high can be provided.

It is a figure which shows an example of the system configuration | structure of the remote control system in this embodiment. It is a sequence diagram for demonstrating the flow of a processing operation of the subunit | mobile_unit and parent | base_device in this embodiment. It is a figure which shows the example of 1 structure of the subunit | mobile_unit in this embodiment. It is a figure which shows one structural example of the main | base station in this embodiment. It is a figure which shows an example of the data which the subunit | mobile_unit and parent | base_device in this embodiment transmit / receive. It is a figure which shows the outline | summary of the broadcast relay vehicle and its hydraulic equipment control in this embodiment. It is a figure which shows an example of the operating device for jacks in this embodiment. It is a figure which shows an example of the subunit | mobile_unit corresponding to the Example mentioned above.

<About the present invention>
In the present invention, after the above-described slave unit (remote control device) receives radio waves including instruction information transmitted by a user's instruction, the master unit is a slave unit after the hydraulic device or the like (master unit) that is the control target receives the radio wave. In contrast, it has a function of transmitting radio waves including response information (reception confirmation information). Further, it has a function of receiving a radio wave including a response from the master unit to information transmitted by the slave unit.

  In the present invention, the slave unit has a display element that does not consume power in the maintenance state. Thereby, even if the power of the slave unit is lost, the current state of the master unit can be kept displayed on the slave unit side.

  Hereinafter, a preferred embodiment of a hydraulic equipment control system according to the present invention will be described with reference to the drawings. First, a remote operation mechanism in the hydraulic equipment control system will be described.

<Remote operation system: System configuration example>
FIG. 1 is a diagram illustrating an example of a system configuration of a remote operation system according to the present embodiment. A remote operation system 10 shown in FIG. 1 is configured to include a remote controller (remote operation device) 20 that is a child device and a parent device 30. Examples of the parent device include, for example, hydraulic control for raising and lowering the jack and raising and lowering the antenna pole based on data transmitted from the child device as will be described later, but the present invention is not limited to this. However, the present invention can be applied to other general operation devices that perform remote operation. In the example of FIG. 1, only the configuration of the transmission / reception part of the parent device according to the present embodiment is shown.

  Here, the remote controller 20 includes a switch unit 21 as information input means for inputting predetermined instruction information for the base unit 30, a power generation element 22 as power generation means, and a wireless IC (Integrated Circuit) 23 as wireless transmission means. The transmitting antenna 24, the receiving antenna 25, and the display element 26 as display means are configured.

  The base unit 30 is configured to include a wireless IC 31 as a wireless transmission means, a reception antenna 32, and a transmission antenna 33.

  The switch unit 21 is provided with various keys for allowing the user to remotely operate the master unit. The user inputs (presses) a switch corresponding to the instruction in order to cause the parent machine to execute processing for a desired instruction.

  The power generation element 22 generates power corresponding to the pressure and working distance generated when the user presses the switch unit 21. The specific contents of power generation will be described later. Note that the power generation element 22 may have a built-in power storage unit such as a capacitor in order to secondarily store the generated power. That is, in the present embodiment, the power obtained by pressing the switch unit 21 once can be stored in the power storage unit.

  The wireless IC 23 includes a transmission / reception unit 23-1 and a control unit 23-2. In the wireless IC 23, the control unit 23-2 converts the content of the key information that the user has pressed on the switch unit 21 into an information signal for transmission, and the transmission / reception unit 23-1 converts the converted information signal to the transmission antenna 24. Use to send to the main unit. That is, the transmission / reception unit 23-1 modulates information transmitted from the transmission antenna 24 to generate a radio wave, demodulates the radio wave received from the reception antenna 25, and acquires information transmitted from the parent device 30.

  In addition, when the identification information obtained from the base unit 30 is received by the reception antenna 25, the wireless IC 23 analyzes the information signal obtained from the transmission / reception unit 23-1, and displays the information based on the analysis result. Display on the element.

  The transmission antenna 24 transmits an instruction control signal corresponding to the instruction pressed by the switch unit 21 to the parent device 30 by wireless transmission according to an instruction from the transmission / reception unit 23-1. The reception antenna 25 acquires a control signal wirelessly transmitted from the parent device 30 and outputs the acquired information to the transmission / reception unit 23-1.

  The display element 26 is a display unit that does not consume power when the display content is maintained. That is, the display element 26 displays the presentation information by the electric power generated when pressure is applied to the power generation element 22. Thereby, even if power is lost, the current state of the parent device can be easily confirmed on the child device side.

  Moreover, in the main | base station 30, the transmission / reception part 23-1 and the control part 23-2 are provided in the radio | wireless IC31. The wireless IC 31 can be operated by an external power supply, outputs data to other configurations of the parent device 30, and inputs information such as the result of executing the output contents.

  The transmission / reception unit 31-1 performs demodulation on the radio wave received from the reception antenna 32, acquires information transmitted from the slave unit 20, modulates information transmitted from the transmission antenna 33, and generates radio waves.

  That is, the transmission / reception unit 31-1 acquires the instruction control information transmitted from the slave unit 20 from the reception antenna 32, and further transmits the reception confirmation signal generated by the control unit 31-2 to the slave unit 20 from the transmission antenna 33. Let Note that the reception confirmation signal in the present embodiment is a response signal to the instruction control information, for example, information indicating whether or not the instruction control information transmitted from the slave unit 20 has been normally received, or instruction control information. This is information indicating a corresponding process executed on the base unit 30 side and the execution result.

  The control unit 31-2 analyzes the reception information from the reception antenna 32 acquired by the transmission / reception unit 31-1, and outputs the information to a predetermined component of the base unit 30 in order to perform processing corresponding to the information. To do. In addition, the control unit 31-2 controls information to be transmitted to the child device 20 based on processing results (for example, normal end, abnormal (error) end, etc.) obtained from other components, and the control information Is transmitted from the transmission / reception unit 31-1 to the slave unit 20 via the transmission antenna 33.

  Note that the control unit 31-2 generates a response signal set in advance for the child device 20 that has transmitted the instruction control information, based on the processing result input from another configuration of the parent device 30. Specifically, for example, when the process for the instruction control information from the slave unit 20 is normally performed, the control unit 31-2 generates a signal indicating that the process has been completed normally, and there is an abnormality in the process. In the case of error, the transmission / reception unit 31-1 transmits error information or retry information for instructing the user again. Furthermore, the control unit 31-2 may cause the transmission / reception unit 31-1 to transmit a radio wave including reception confirmation information.

  In the example shown in FIG. 1, the slave unit 20 and the master unit 30 have been described as having a one-to-one relationship. However, the present invention is not limited to this, and the slave unit 20 and the master unit 30 have a relationship. May be 1 to N (N: plural), N to 1, and N to N.

<Operation sequence>
Next, processing operations of the slave unit 20 and the master unit 30 will be described using a sequence diagram. FIG. 2 is a sequence diagram for explaining the flow of processing operations between the slave unit and the master unit in the present embodiment. Note that the slave unit 20 and the master unit 30 shown in FIG. 2 have the configuration shown in FIG. That is, in the example of FIG. 2, after the parent device 30 receives a radio wave emitted from the child device 20, the parent device 30 has a function of transmitting a radio wave including reception confirmation information to the child device 20. Furthermore, the subunit | mobile_unit 20 has a display element which does not consume electric power in a maintenance state.

  In FIG. 2, when the switch of the handset 20 is pressed by selecting information input from the user (S01), power generation is performed by the power generation element 22 (S02). The power generating element 22 includes a capacitor or the like that can store power secondarily. Next, using the power generated by the power generation element 22, instruction control information (instruction information) from the transmission antenna 24 to the parent device 30 corresponding to the switch is generated via the wireless IC 23 (S03), and is generated. The instruction control information is transmitted to the base unit 30 by radio waves (S04). At this time, the slave unit 20 performs an initialization process on the display element 26 and resets the display information stored so far.

  In the base unit 30, the radio wave transmitted from the handset 20 is received by the reception antenna 32, and it is determined whether or not the radio IC 31 has normally received the instruction control information, and the instruction control information has been normally received (S06). The content of the instruction control information is executed (S07), and the execution result is output to the slave unit 20 that has transmitted the instruction control information (S08).

  In the process of S08, different signals (normal, abnormal, etc.) may be transmitted as described above depending on whether or not the process has been executed normally. When the instruction control information can be normally received, the radio IC 31 may transmit the radio wave including the reception confirmation information from the transmission antenna 33 without waiting for the processing of S07.

  Next, when receiving a signal from the parent device 30, the child device 20 acquires a radio wave including reception confirmation information by the receiving antenna 25, and when it has been normally received, stores it in a capacitor or the like in advance as described above. Using the stored power, the instructed information is displayed on the display element 26 or rewritten into a state indicating normal reception or a state indicating an error (S09).

  Note that, in the process of S08, when the reception is not normally performed or when the reception is not received at all, the handset 20 does not rewrite the display element 26. In the present embodiment, whether or not the process is normal can be determined by referring to, for example, a preset data length or a code included in the data.

  That is, in the unlikely event that communication fails due to radio wave interference or the like, it is not displayed that the handset 20 has pressed the switch. In this case, since nothing is displayed on the display element, the user can know that the transmission has not been normally performed for some reason, and can perform safety measures such as a retry operation or a stop operation.

  In the case of the hydraulic control in the present embodiment, it is preferable to send two signals for starting and ending the operation to the master unit. As a result, it is possible to continue the operation by predetermined hydraulic control until the end switch is pressed from the start switch, and the user can adjust the start and end timing without depending on the setting of the device. Because.

  Therefore, in that case, for example, in the process of S07, when raising and lowering the jack column by hydraulic pressure, since two signals of start and end are transmitted, when the start signal is received, the lifting operation is started. When the end signal is received, the elevating operation that has been continued is terminated.

  Note that there may be a case where transmission from the slave unit 20 cannot be correctly received by wireless transmission, for example. In order to deal with such a case, for example, a stop signal is generated until a predetermined time or more, a predetermined distance or more, or a movable maximum value or minimum value is reached after starting the lifting operation by the start signal. If not received, a mechanism for performing automatic stop (forced termination) may be provided. Further, as described above, it may be set so that only a predetermined amount of movement is performed with respect to a single signal, instead of controlling with a start or end signal. By providing the above-described function, the safety in raising and lowering the jack can be improved.

<About handset 20>
Next, the specific structure of the subunit | mobile_unit 20 in this embodiment is demonstrated using figures. FIG. 3 is a diagram illustrating a configuration example of the slave unit in the present embodiment. The slave unit 20 in FIG. 3 specifically explains the slave unit 20 shown in FIG. 1 described above. The handset 20 shown in FIG. 3 includes the switch unit 21, the wireless IC 23, the transmission antenna 24, the reception antenna 25, and the display element 26 having the above-described configuration, and further includes the switch support unit 41, The leaf spring 42, the leaf spring support shaft portion 43, the protrusion 44, the hammer 45, the piezoelectric material 46 as the power generation element 22, the spring 47 that is an elastic body, the power storage portion 48 such as a capacitor, and the power And a relay switch 49 serving as a switching unit.

  Here, each configuration will be described together with the operation. When the user presses the switch for the selected operation among the switch portions 21 having one or a plurality of fingers 50, the switch portion 21 moves downward about the switch support shaft portion 43, and a part thereof is a leaf spring support shaft. It contacts the part 43. Further, when the switch unit 21 is pushed down by the user's finger 50, the leaf spring 42 is pushed down by the switch unit 21.

  A leaf spring support shaft portion 43 is provided at the center of the leaf spring 42 shown in FIG. 2, and the leaf spring 42 on the left side of the leaf spring support shaft portion 43 is pushed downward, so that the leaf spring support shaft portion 43 The right leaf spring 42 rotates upward. At this time, the end of the leaf spring 42 comes into contact with the protrusion 44. As a result, the leaf spring 42 is temporarily stopped by the protrusion 44 against the upward movement, but after being bent to some extent by the elastic force of the leaf spring 42, the leaf spring 42 is released from being fixed by the protrusion 44, An impact is applied to the piezoelectric material 46 by the hammer 45 disposed on the upper surface of the spring.

  Thereby, the piezoelectric material 46 generates electric power. At this time, since the separately attached spring 47 is contracted, when the user removes his / her finger from the switch unit 21, the spring is extended so as to be restored by the elastic force, and the leaf spring 42 returns to the original position.

  Here, as the piezoelectric material 46 described above, for example, lead zirconate titanate (PZT), which is a piezoelectric element having a large power generation amount, is used. In the present invention, the piezoelectric material is not limited to the above-described piezoelectric material. For example, silicon dioxide, zinc oxide, Rochelle salt (potassium tartrate-sodium tartrate), lead zirconate titanate, lithium niobate, lithium tantalate, Aluminum nitride, polyvinylidene fluoride, or the like can be used, and more than one of the above materials can be combined. In the present embodiment, the generated power is preferably about 0.1 to 1 mW, for example.

  In the above-described embodiment, an element using a piezoelectric material is used for power generation. However, the present invention is not limited to this. For example, an electromagnetic induction element combining a permanent magnet and a coil or a charge is semipermanent. Alternatively, an electrostatic induction element using an electret held in the above may be used as a power generation element.

  Here, the power generated by the above-described operation is once stored in the power storage unit 48. As the power storage unit 48, a secondary battery such as a capacitor or a lithium ion battery can be used. In other words, in the present embodiment, the electric power generated by the piezoelectric material 46 supplies electric power necessary for processing for transmitting a control signal generated by pressing the switch unit 21 to the parent device 30 and also supplies the electric power storage unit 48 with the electric power. The display element 26 is used to present information based on the signal from the parent device 30 by using the stored power secondarily.

  Therefore, first, a part of the electric power generated by the piezoelectric material 46 is used, and radio waves are transmitted from the wireless IC 23 via the transmission antenna. In the example of FIG. 3, both the transmission antenna 24 and the reception antenna 25 are built in the slave unit 20. However, if necessary, they may be installed outside the slave unit 20. Further, if necessary, the transmission antenna 24 and the reception antenna 25 may be replaced with one common antenna. In the present embodiment, the frequency of the radio wave to be transmitted is preferably about 315 MHz, for example, but may be other frequencies.

  Here, the radio wave transmitted from the slave unit 20 is modulated by information indicating communication from the slave unit 20 to the master unit 30, information on a unique identification number (ID) of the slave unit, and the like. In addition, when there are a plurality of switches, the number of the pressed switch may be acquired from the pressed position, and may be modulated by information including the acquired switch number. In addition, the wireless IC 23 has a built-in storage area (for example, a flash memory) that does not consume power, and stores data such as an ID. The data length of the ID can be changed depending on the purpose. Thus, for example, when a system having about 100 slave units is constructed, a data length of 7 bits is required. Therefore, a necessary data length may be set according to the number of slave units and master units in the system to be constructed. A data configuration example will be described later.

  Next, the slave unit 20 performs a reset operation of the display element 26 via the relay switch 49 using a part of the power stored in the power storage unit 48. The display element 26 may be an electronic paper using a reflective display element (microcapsule) or the like, or a liquid crystal element having a memory property using a cholesteric liquid crystal, a ferroelectric liquid crystal, an electronic powder fluid, an electrochromic material, or the like. A display element can be used.

  Note that the characteristics of electronic paper include, for example, “no need for power to hold display content after writing”, “high visibility due to the reflective display element”, “low power consumption” It can be rewritten ”.

  Since these consume power only at the time of rewriting, it is possible to confirm pressing without consuming power even during the holding period. In addition, as power consumption, about 0.01-0.1 mW is preferable, for example. Further, the display element 26 is reset to rewrite the display state indicating that the switch unit 21 is not pressed (hereinafter referred to as OFF). At this time, a symbol, a character, a color, or the like indicating OFF may be displayed, or white, black, or the like may be simply displayed. Thereafter, the relay switch 49 is turned off by the wireless IC 23.

  Moreover, if the subunit | mobile_unit 20 transmits the electromagnetic wave containing the reception confirmation information sent from the main | base station 30, it will receive an electromagnetic wave via the receiving antenna 25, and will determine whether it is normal by the wireless IC23. Here, if the reception result is normal, the wireless IC 23 performs control for turning on the relay switch 49 again. Thereby, the display element 26 can be driven, and the display state can be rewritten to indicate that the switch is pressed (hereinafter referred to as “on” if necessary). The contents displayed on the display element 26 may be contents corresponding to the pressed switch. Therefore, when a response signal to the instruction control information transmitted from the child device 20 to the parent device 30 is transmitted from the parent device 30 to the child device 20, the contents of the switch included in the response signal may be displayed. The information on the switch transmitted to the parent device 30 on the side of the child device 20 in advance is temporarily accumulated, and when response information (for example, reception confirmation information) from the parent device 30 is received, the information is temporarily accumulated. The information on the switches that have been stored may be displayed using the display element 26.

  Further, the display element 26 may display, for example, a symbol or character indicating ON, or may display a predetermined color (white, black, etc.) set in advance. Further, when there are a plurality of switches, symbols, characters, etc. indicating which switch may be displayed. As a result, the user can confirm that the transmission / reception has been normally performed, can confirm that the switch unit 21 has been pressed not immediately after pressing it, and can easily confirm which switch has been pressed. can do.

  Note that the configuration of the slave unit 20 is not limited to the content shown in FIG. 3 in the present invention, and a force is applied to the power generation element in association with the operation of the user selecting the switch, and power is generated by the force. The radio wave of the instruction signal is transmitted to the main unit using the generated electricity, the radio wave is received from the main unit and transmitted to the display element such as the reflective display element, and the received content is selected by the switch Any mechanism can be used as long as the content can be displayed. Therefore, the present invention can be variously configured to satisfy the above contents.

  In addition, when the subunit | mobile_unit 20 in this embodiment is used, for example, when the total electric power generation amount is 0.4 mW, when the efficiency which converts a signal pulse into DC is 80%, a capacitor | condenser etc. Stores 0.32 mW in the power storage unit and supplies power as a radio transmission of 0.2 mW, reception of radio waves of 0.1 mW, display element reset of 100 μW, and display element writing of 100 μW for a total power consumption of 0.32 mW By doing so, the present embodiment can be realized.

<About main unit 30>
Next, a specific configuration of the parent machine 30 provided on the hydraulic device main body side in the present embodiment will be described with reference to the drawings. FIG. 4 is a diagram illustrating a configuration example of the parent device in the present embodiment. The master unit 30 in FIG. 4 specifically explains the master unit 30 shown in FIG. 1 described above. The base unit 30 shown in FIG. 4 is configured to include the wireless IC 31, the reception antenna 32, and the transmission antenna 33 having the above-described configuration.

  Here, each configuration will be described together with the operation. Base unit 50 is operated by an external power source. The external power source includes a commercial power source, a dry battery, a rechargeable battery, or the like. Radio waves received via the receiving antenna 32 of the base unit 30 are demodulated by the wireless IC 31 to determine whether normal data has been transmitted.

  Here, if the received data is normal, information indicating communication from the master unit 30 to the slave unit 20, information of the slave unit ID, information indicating that reception is normal, and When there are a plurality of switches, radio waves modulated by information including the switch number are transmitted via the transmission antenna 33. When the radio wave is not normally received, the parent device 30 transmits nothing to the child device 20 or transmits error information to the child device 20.

  Further, when it is desired to use the transmitted ID of the slave unit 20, information on the pressed switch, etc., data is output from the wireless IC 31. For example, a PC (Personal Computer) or the like can be connected to the output terminal. In that case, it is preferable to insert an element that converts the signal into a signal corresponding to communication means such as RS232C, for example, between the wireless IC 31 and the output terminal. Conversely, data can be input from a PC using the wireless IC 31. Thereby, for example, communication with a device other than the child device having a specific ID can be invalidated (pairing).

<Instruction information data example>
Here, FIG. 5 is a diagram illustrating an example of data transmitted and received between the child device and the parent device in the present embodiment. In the example of FIG. 5, for example, “header”, “ID”, “communication direction”, “reception confirmation”, “switch information”, and the like are provided as a total of 26 bits as instruction information items transmitted from the slave unit 20. Yes.

  Specifically, in FIG. 5, 2 bits are allocated to the “header”, and the signal type (for example, “1”, “0”, etc.) is stored. Thereby, for example, it is possible to control which control is performed on the hydraulic device (for example, ascending or descending). Further, “ID” stores 16 bits of an individual ID for identifying the child device 20. In the “communication direction”, 2 bits of information indicating whether the transmission direction of the instruction information is “master unit 30 → slave unit 20” or “slave unit 20 → slave unit 30” is stored.

  In “reception confirmation”, 2 bits of information indicating whether the reception is normal or an abnormality has occurred is stored. Note that the “reception confirmation” information may be, for example, normal or abnormal reception at the parent device 30 with respect to the instruction control information transmitted from the child device 20. The execution result on the machine 30 side may be normal or abnormal.

  In the “switch”, the switch position operated by the user is stored in 4 bits. Note that the “switch” executes (actively turns on) a process (for example, lifting / lowering process) corresponding to a number (for example, jack post identification information or antenna pole number) included in the bit. Show.

  The above-described example of instruction information data is an example, and the number of bits, the order, and the contents of the data are not limited to this in the present invention, and other configurations may be added. Moreover, it can respond | correspond suitably according to a specification etc. Next, an application example of the remote control device (remote control) in the present embodiment will be described with reference to the drawings.

<Example 1: Hydraulic equipment control system in broadcast relay vehicle>
In Example 1 to which the present embodiment described above is applied, for example, an example of a control system for a hydraulic device applied to raising and lowering of an antenna pole and raising and lowering of a jack in a broadcast relay vehicle is shown. Note that the broadcast relay vehicle is a broadcast relay vehicle that delivers images of events and disaster-stricken areas from the field. That is, when there is no facility for transmitting video on the spot, the video is transmitted as a broadcasting facility on which the broadcast relay vehicle moves.

  Broadcast broadcasters must also supply power to photography / sound collection equipment, control the equipment, process / edit / record video / audio information, etc., or transmit the information by radio etc. Can do. Normally, this broadcast relay vehicle is provided with a hydraulic device such as a jack for ensuring a stable state of the vehicle body and a pole system for extending the radio transmission antenna to a high place and adjusting the direction.

  Here, FIG. 6 is a diagram showing an overview of the broadcast relay vehicle and its hydraulic device control in the present embodiment. The hydraulic equipment control system 60 shown in FIG. 6 has a remote controller 61 that is a slave unit and a broadcast relay vehicle 62. The broadcast relay vehicle 62 includes a master unit 63 and a plurality of jacks 64 that are hydraulically controlled. -1 to 64-4, an FPU (Field Pickup Unit) 65, and a satellite antenna 66. The FPU 65 and the satellite antenna 66 constitute an independent wireless transmission antenna unit.

  Note that the antenna poles of the jack 64, the FPU 65, and the satellite antenna 66 shown in FIG. 6 can perform not only the vertical movement but also the parallel movement, rotation, and elevation angle control. Although shown, the parallel movement, rotation, and elevation angle control described above can also be instructed by the slave unit.

  Note that. Specifically, the jack 64 includes a front left jack 64-1, a right front jack 64-2, a rear left jack 64-3, and a rear right jack 64-4, for example. However, the present invention is not limited to this. In addition, the FPU 65 and the satellite antenna 66 show the configurations of independent wireless transmission antennas.

  Conventionally, a wired remote controller equipped with a long cable has been used to operate jack hydraulic equipment. The user holds the remote controller and operates the jack 64, the FPU 65, and the antenna poles 65p and 66p of the satellite antenna 66 while operating around the relay vehicle outside the vehicle.

  However, in bad weather or at night, it is difficult to route the remote control cable properly outside the vehicle, and there is a risk that the cable may be hooked on an obstacle or accidentally stepped on by the user, leading to disconnection or the like. .

  In the present embodiment, in order to solve the above problem, the wireless communication is realized by using the remote controller 61 described above. As described above, the remote controller 61 shown in FIG. 6 includes one or more switch units 61s (six switches in the example of FIG. 6) and one or more display units 61d (display units in the example of FIG. 6). 1) is provided.

  In addition, the broadcast relay vehicle 62 uses radio waves having a large output in a plurality of frequency bands for video / audio signals, communication, etc., and there is a possibility that communication may be temporarily lost due to radio wave interference or the like. Yes, it was difficult to adopt wireless.

  Therefore, the above-described master unit 63 that performs transmission / reception with the remote controller 61 as a slave unit is mounted on the broadcast relay vehicle 62, and the hydraulic pressure in the jacks 64-1 to 64-4 or the antenna poles 65p and 66p is determined by a signal from the master unit 63. Take control.

  Here, an outline of an operation on the jack mounted on the body of the broadcast relay vehicle 62 described above will be described with reference to the drawings. FIG. 7 is a diagram illustrating an example of an operation device for a jack in the present embodiment. In the example of FIG. 7, the master unit 63 that performs transmission and reception with the slave unit 61 is attached to a hydraulic jack body 71 that is a hydraulic device body.

  The slave unit 61 is provided with, for example, a switch for starting or ending the raising / lowering operation for one jack on the front, rear, left and right of the vehicle body and the above-described display element for displaying the operation content. When the user presses the switch in the slave unit 61, power is generated thereby, and a radio signal is transmitted from the slave unit 61 to the master unit 63. At this time, the display element of the slave unit 61 is initialized.

  The base unit 63 decodes the information about the type and elevation of the jack 64 included in the radio signal, and moves the corresponding jack out of the plurality of jacks 64-1 to 64-4. At the same time, the master unit 63 transmits a signal including information indicating that the signal has been normally received to the slave unit 61, and displays that fact on the display element of the slave unit 61. In the unlikely event that communication fails due to radio interference or the like, the fact that the switch has been pressed is not displayed. In this case, since nothing is displayed on the display element, the user can know that the transmission could not be performed normally for some reason, and can take safety measures such as a retry operation or a stop operation.

  Further, for example, by connecting an inclination angle sensor 70 for measuring the level to the base unit 63, safety can be further improved. In other words, when the level of the vehicle body is larger than the set value, when attempting to raise or lower the jack 64 that leads to a dangerous state, the master unit 63 does not operate the jack 71 and transmits a message to that effect to the slave unit 61. The slave unit 61 can display the contents on the display unit to notify the user. In addition, the display element can display information for grasping the state for the user to safely operate the jack, a navigation function, and the like.

<Specific examples of slave units>
Here, FIG. 8 is a diagram illustrating an example of the slave unit corresponding to the above-described embodiment. 8A shows a slave unit dedicated to hydraulic equipment control of a jack, and FIG. 8B shows a slave unit dedicated to hydraulic equipment control of a jack and an antenna pole.

  A remote control 80-1 shown in FIG. 8A includes switches 81-1 to 81-4, an operation stop start switch 82, and a display unit 83 corresponding to the jacks 64-1 to 64-4 described above. It is comprised so that it may have.

  The switch 81 shown in FIG. 8A includes a front left jack switch 81-1, a right front jack front left jack switch 81-2, and a rear left jack front left jack switch 81. -3 and rear right jack front left jack switch 81-4. That is, each switch is arranged corresponding to the front direction of the remote controller 80-1 and the position of the jack. Thereby, the position of the switch corresponding to the jack can be easily grasped. Note that the switch arrangement is not limited to this in the present invention.

  Further, the switches 81-1 to 81-4 are each provided with an upward switch “Δ” and a downward switch “▼”. That is, when any switch is pressed, power generation is performed as described above, and the instruction information corresponding to the content of the pressed switch 81 is transmitted to the parent device. Also, all symbols, characters, patterns, etc. displayed on the display unit 83 are initialized by the generated power, and when a signal from the parent device 63 is received, corresponding information is output to the display unit 83.

  Further, since the switch 81 is a switch for starting up or down, power generation is performed by pressing the end start switch 82 at a predetermined timing in order to stop the up or down, and an end signal is sent to the base unit 63. Sent. Further, the fact is displayed on the display unit 83 by the signal received from the parent device 63. By configuring the end start switch 82 with a single switch, the internal mechanism can be simplified and the cost can be reduced. Further, the slave unit 61 is provided with the power storage unit as described above. When the hydraulic jack main body 71 is not operating, the end start switch 82 has no effect even if the end start switch 82 is pressed. For example, it is possible to perform a process of storing electric power in advance.

  Also, the remote control 80-2 shown in FIG. 8B is provided with antenna start switches 84-1, 84-2. Further, the position of the start switch 84 is arranged according to the front direction of the remote controller 80-2 and the installation positions of the antenna poles 65p and 66p. Further, the switches 81-1 to 81-4, 84-1, and 84-2 are provided with an upward switch “Δ” and a downward switch “▼”, and an end button 82 is provided between them. It has been. As described above, each switch transmits a signal to the parent machine by pressing each switch, and the operation result is displayed on the display unit 83.

  As described above, according to the present invention, it is possible to increase the reliability in hydraulic equipment control and reduce the environmental load. Specifically, after receiving the radio wave transmitted by the slave unit (remote control device) according to the user's instruction from the hydraulic device as the master unit, the master unit transmits the radio wave including the reception confirmation information to the slave unit. It has a function to transmit, and also has a function to receive a radio wave including a response from the master unit for information transmitted by the slave unit.

  In the present invention, since the slave unit has a display element that does not consume power in the maintenance state, the slave unit can easily grasp the current state of the master unit even when power is lost. In order to prevent interference in signals to be transmitted and received, the parent device and the child device are previously paired with identification information such as an ID, and can be prevented from operating except for the combination. Further, since there is no depletion of the power supply, it is possible to control the hydraulic equipment over a long period of time, and it is possible to control the hydraulic equipment by remote operation, which has been difficult in the past.

  By applying such a battery-less wireless remote control system that applies energy harvesting technology, it can be applied to hydraulic equipment control systems that use environmentally friendly, safe and convenient battery-free wireless remote control systems for live broadcasts and emergencies. be able to. In other words, by pressing the button (switch) on the remote control device and using a transmission module that generates electricity, wireless data communication is possible without the need for a battery, which is environmentally friendly because it does not require a battery and is safe and convenient even during live broadcasts and emergencies. A wireless remote control system can be provided.

  In addition to the above-described hydraulic equipment, the hydraulic equipment operated by the above-described remote operation device (slave unit) in the present invention includes, for example, a hydraulic machine, a fluid pressure servomotor, an explosive actuator, a fluid transmission device, The present invention can be widely applied to devices operated by fluid pressure such as cylinders and pistons.

  Although the preferred embodiment of the present invention has been described in detail above, the present invention is not limited to the specific embodiment, and various modifications, within the scope of the gist of the present invention described in the claims, It can be changed.

10 Remote operation system 20 Remote operation device (remote control, slave unit)
21, 91, 94 Switch unit 22 Power generation element 23, 31 Wireless IC
23-1, 31-1 Transmission / reception unit 23-2, 31-2 Control unit 24, 33 Transmission antenna 25, 32 Reception antenna 26, 83 Display element 30, 63 Master unit 41 Switch support shaft part 42 Leaf spring 43 Leaf spring support Shaft portion 44 Protrusion portion 45 Hammer 46 Piezoelectric material 47 Spring as elastic body 48 Power storage portion 49 Relay switch 50 Finger 60 Hydraulic equipment control system 61, 80 Remote control 62 Broadcasting relay car 63 Master unit 64 Jack 65 FPU (Field Pickup Unit)
65p, 66p Antenna pole 66 Satellite antenna 70 Tilt angle sensor 71 Hydraulic jack body 82, 84 Switch 83 End switch

Claims (6)

Hydraulic device having a hydraulic device and a remote control device for transmitting control content instructed by a user to the hydraulic device by wireless communication and causing the hydraulic device to perform a predetermined operation corresponding to the control content In the control system,
The remote control device includes a switch unit for inputting a predetermined instruction from the user, a power generation unit that generates power when the user instructs the switch unit, and the control using the generated power The instruction information selected by the switch unit is transmitted to an object, a first transmission / reception unit that receives a response signal to the instruction information transmitted from the control object, and the first transmission / reception unit that is received by the first transmission / reception unit A display unit including a display element having a memory property to display the content of the response signal using the power obtained by the power generation unit,
The hydraulic device receives the instruction information obtained from the remote control device, and when it is received normally, the second transmission / reception unit that transmits a reception confirmation signal, and the processing for the instruction information is not normally performed. And a control unit that generates error information when the error occurs and transmits the error information from the transmission / reception unit.   The hydraulic device control system according to claim 1, wherein the hydraulic device is one or a plurality of hydraulic jacks.   The hydraulic equipment control system according to claim 1 or 2, wherein the hydraulic equipment is one or a plurality of antenna poles.   4. The hydraulic device control system according to claim 1, wherein the switch unit includes respective switches for selecting start and end of operation of the hydraulic device. 5.   5. The hydraulic device control system according to claim 1, wherein the power generation unit includes a power storage unit that is formed of a piezoelectric material and stores power obtained by the piezoelectric material. 6.   6. The control unit according to claim 1, wherein the control unit forcibly terminates the hydraulic control when the end signal is not received by the second transmitting / receiving unit during the hydraulic control for a predetermined time or a predetermined distance. The hydraulic equipment control system according to any one of the above.

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