Operating system and parent unit of the operating system

Abstract

To provide an operating system in which only one of a plurality of slave units has an operation authority and which comprises a master unit having a single receiving part.SOLUTION: An operating system comprises: a plurality of slave units TX-1, TX-2 and TX-3 which have identification numbers and which transmit control signals including operation information; and a master unit RX which operates an operation object 1 by receiving the control signals. The master unit has a storage part 2 which stores the identification numbers of the slave units and the specific identification number linked to an operation authority, a single receiving part 5, and a control part 3 which outputs only the operation information of the control signal received from the slave unit having the specific identification number to the operation object.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an operation system that is composed of a parent unit that operates an operation object using operation information, and multiple child units that transmit control signals including the operation information to the parent unit, and in particular to an operation system that is characterized in that the parent unit can communicate with multiple child units using a single receiving unit, but only specific child units that have operation authority can operate the operation object. [Background technology]

[0002] The following Patent Document 1 describes a communication control device. This communication control device includes a plurality of receiving devices corresponding to a plurality of transmitting devices, each receiving an operation signal from the transmitting devices, and a drive control device that controls a driven object based on the operation signals. Furthermore, a switching processing unit is provided between the drive control device and the plurality of receiving devices, and this switching processing unit can switch from one of the operation signals input from the plurality of receiving devices to another operation signal. This invention is said to improve safety when a common radio-controlled model can be operated alternately by a plurality of transmitting devices. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2017-192493 A Summary of the Invention [Problem to be solved by the invention]

[0004] According to the invention of the communication control device disclosed in the above Patent Document 1, there is a one-to-one correspondence between multiple transmitting devices and multiple receiving devices, and it does not matter if a pair of transmitting devices and receiving devices has a completely different frequency, modulation method, etc. from another pair; by having the switching processing unit select one of the pairs using an operation signal sent from the transmitting device, a common radio-controlled model can be operated alternately by the multiple transmitting devices.

[0005] However, since the system configuration involves a one-to-one correspondence between multiple transmitters and multiple receivers, and multiple receivers must be prepared to correspond to each of the multiple transmitters, there are many receivers and related parts to be installed in the radio-controlled model, which creates problems such as difficulty in securing the installation space and running the wiring, and it is also difficult to add transmitters later.

[0006] The present invention has been made to solve the problems of the conventional technology described above, and aims to provide a safe and easy-to-use operation system in which a parent unit has a simple and inexpensive configuration that can communicate with multiple child units using a single receiving unit, but in which only specific child units that have been given operating authority can operate the object to be operated, and a parent unit in such an operation system that has a single receiving unit. [Means for solving the problem]

[0007] The operating system according to claim 1 comprises: a plurality of slave units that transmit control signals including unique identification numbers and operation information of operation targets; a master unit that receives a control signal from the slave unit and sends operation information to an object to be operated; The parent device is a storage unit that stores identification numbers of the plurality of slave devices and a specific identification number that is a single identification number associated with an operation authority of an operation target; a single receiving unit that receives control signals transmitted from the plurality of slave units; a control unit that outputs, to an operation target, operation information of a control signal including a specific identification number among the control signals received by the receiving unit; With And, When the parent device is turned on, the parent device automatically performs unicast communication to transmit an initial connection request signal requesting connection with the child device to each child device in turn, or broadcast communication to transmit the signal to all child devices; The slave unit that has received the initial connection request signal transmits a response signal including its own identification number to the master unit; The base unit determines the identification number of the handset that has transmitted the first response signal received since the base unit started transmitting the initial connection request signal as a specific identification number, and stores the specific identification number in the storage unit. It is characterized by the fact that

[0008] The operation system according to claim 2 is the operation system according to claim 1, The slave unit, whose own identification number is a specific identification number, transmits a relinquishment signal to the master unit, requesting that its own identification number cease to be a specific identification number; Your identification number is a specific identification number. teeth When another handset that does not have a specific ID number transmits a request signal to the base unit requesting that its own ID number be changed to a specific ID number, The control unit of the master unit analyzes the abandon signal and the request signal and sets the identification numbers of the other slave units to specific identification numbers.

[0009] The operation system according to claim 3 is the operation system according to claim 1, The handset whose own identification number is a specific identification number, When the base unit transmits a relinquishment signal requesting that its own identification number cease to be a specific identification number and a request signal requesting that the identification number of a specific handset other than its own become a specific identification number, The control unit of the master unit analyzes the abandon signal and the request signal and sets the identification number of the other specific slave unit to a specific identification number.

[0010] The operation system according to claim 4 is the operation system according to any one of claims 1 to 3, the slave unit generates and transmits audio data to the master unit; The control unit of the base unit transfers the audio data received from the handset to the other handset.

[0011] The master unit described in claim 5 is a master unit of an operation system that operates an operation object, a storage unit that stores a unique identification number and identification numbers of a plurality of slave devices that transmit a control signal including operation information of the operation target, and a specific identification number that is a single identification number associated with the operation authority of the operation target; a single receiving unit that receives control signals transmitted from the plurality of slave units; a control unit that outputs, to an operation target, operation information of a control signal including a specific identification number among the control signals received by the receiving unit; With death, When the parent device is turned on, the parent device automatically performs unicast communication to transmit an initial connection request signal requesting connection with the child device to each child device in turn, or broadcast communication to transmit the signal to all child devices; The slave unit that has received the initial connection request signal transmits a response signal including its own identification number to the master unit; The base unit determines the identification number of the handset that has transmitted the first response signal received since the base unit started transmitting the initial connection request signal as a specific identification number, and stores the specific identification number in the storage unit. It is characterized by the fact that The operation system according to claim 6 is the operation system according to claim 1, The slave unit that does not have the operating authority transmits a request signal to the master unit requesting the operating authority, and when the master unit receives the request signal, the master unit confirms that the slave unit that transmitted the request signal is the slave unit with the identification number pre-stored in the storage unit, and then transmits a confirmation signal to the slave unit that has the operating authority asking whether or not to relinquish the operating authority, and when a relinquishment signal is sent from the slave unit that has the operating authority, the master unit performs an operation to transfer the operating authority to a new slave unit. is doing. [Effects of the Invention]

[0012] In the control system described in claim 1 and the master unit of the control system described in claim 5, control signals transmitted from one or more slave units are received by a single receiver in the master unit. However, among the received control signals, only operation information contained in the control signal transmitted from a specific slave unit that has been granted the operation authority for the target unit is provided to the target unit via a controller and used to operate the target unit. That is, when a control signal containing an identification number unique to each slave unit and operation information for operating the target unit is transmitted from the slave unit to the master unit, the controller of the master unit checks whether the identification number of the slave unit contained in the received control signal is an identification number pre-stored in a memory unit, and also checks whether the identification number is a specific identification number associated with the operation authority for the target unit. If the identification number is confirmed to be a pre-stored identification number and is a specific identification number, the controller of the master unit outputs the operation information contained in the control signal to the target unit to operate it. To increase the number of slave units, the identification number of the slave unit is simply stored in the memory unit of the master unit.

[0013] According to the operation system described in claim 2, the operation authority of an operation target can be delegated to another slave unit upon request from the slave unit currently having the operation authority and from another slave unit desiring the operation authority. First, the slave unit currently having the operation authority transmits a relinquishment signal to the master unit, and the other slave unit not having the operation authority transmits a request signal to the master unit. The relinquishment signal includes information on the identification number of the slave unit currently having the operation authority, i.e., the specific identification number. The request signal is a signal from the slave unit requesting that it become the new subject of operation authority and includes information on the identification numbers of the other slave units. The control unit of the master unit receives these signals with a single receiving unit. The control unit of the master unit confirms that the identification number included in the relinquishment signal is the specific identification number, and if it confirms that the identification number included in the request signal is the identification number previously stored in the memory unit, updates the memory contents so that the current specific identification number becomes the normal identification number and the identification number included in the request signal becomes the specific identification number.

[0014] According to the operation system described in claim 3, the operation authority of an operation target can be transferred to another slave unit simply by a request from the slave unit currently having the operation authority. First, the slave unit currently having the operation authority transmits a relinquish signal and a request signal to the master unit. The relinquish signal includes information on the identification number of the slave unit currently having the operation authority, i.e., a specific identification number. The request signal includes information on the identification numbers of the other slave units. The relinquish signal and the request signal may be transmitted separately or together. The control unit of the master unit receives these signals with a single receiving unit. The control unit of the master unit confirms that the identification number included in the relinquish signal is a specific identification number, and if it confirms that the identification number included in the request signal is an identification number previously stored in the memory unit, updates the memory contents of the memory unit so that the current specific identification number becomes a normal identification number and the identification number included in the request signal becomes a specific identification number.

[0015] According to the operation system described in claim 4, when a user operating a slave unit speaks to their own slave unit, the slave unit generates voice data from the voice and transmits it to the master unit. The voice data can be transmitted via a control signal, or it can be transmitted as voice data alone, separate from the control signal. The master unit's control unit then forwards the received voice data to the other slave units, allowing the users of the other slave units to hear the voice. Even when the operation authority is delegated while the operation target is currently being operated, multiple users operating multiple slave units can simultaneously converse and communicate with each other to determine the timing of the authority transfer. This reduces the likelihood of an inconvenient situation, such as the user receiving the delegated operation authority not realizing the transfer and the operation target becoming uncontrollable, thereby preventing danger during work. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a schematic diagram illustrating an outline of an operation system according to an embodiment and switching between slave units having operation authority. [Figure 2] FIG. 2 is a functional block diagram showing a detailed configuration of a master unit in the operation system according to the embodiment. [Figure 3] FIG. 2 is a functional block diagram showing a detailed configuration of a slave unit in the operation system according to the embodiment. [Figure 4] 1 is a schematic diagram illustrating a situation in which a crane, which is an operation target, is operated by an operation system according to an embodiment. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0017] An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a schematic diagram showing an overview of switching between slave units having operation authority for an operation object in an operation system according to an embodiment. First, an overview of the operation system will be described with reference to the same figure. Note that "operation" here means moving an object so as to achieve a predetermined purpose. In this example, a crane is used as an example of an operation object, so "operating" a crane has substantially the same meaning as "piloting."

[0018] As shown in FIG. 1, this operation system includes a plurality of (three in the illustrated example) slave units T X-1 , T X-2 , T X-3 And these sub-units T X-1 , T X-2 , T X-3 One base unit R that can communicate with X Each slave unit is usually held and operated by one user (operator or pilot). X-1 , T X-2 , T X-3 Each of the crane 1 and the master unit R has a unique identification number, and as will be described in detail later, the master unit R transmits a control signal including the identification number and operation information for operating the crane 1, which is the object of operation. X The base unit R X is mounted on the crane 1 and connected to the drive mechanism of the crane 1, and the slave unit T X-1 , T X-2 , T X-3 The slave unit receives a control signal from the slave unit, and sends only the operation information contained in the control signal from the slave unit having the operation authority to the drive mechanism of the crane 1 to operate it.

[0019] In the operation system shown in Fig. 1, only one slave unit has the operating authority. In the first state shown on the left, slave unit T X-1 In other words, as for the control signal including the operation information of the crane 1, only this slave T X-1 Only the parent unit R X In this operation system, as shown in the second state on the right, the slave unit having the operation authority is transferred to the slave unit T that had the operation authority in the first state on the left. X-1 Therefore, the slave T, which did not have the operation authority in the first state, X-3 can be switched to.

[0020] Next, the operation system will be described in detail with reference to FIGS. Figure 2 shows the parent device R in the operation system.X 1 is a functional block diagram showing the detailed configuration of the master unit R. X The wireless communication system includes a memory unit 2, a control unit 3, a transmission unit 4, a single reception unit 5, and an antenna 6. The memory unit 2, the transmission unit 4, and the reception unit 5 are connected to the control unit 3. The antenna 6 is connected to either the transmission unit 4 or the reception unit 5 via a switching means 7.

[0021] The storage unit 2 of the parent device is made up of non-volatile memory, and stores the identification number of the parent device (parent ID) and the identification numbers of multiple (n in this example) child devices (child ID1...child ID n ) is stored. When adding a new (n+1)th child device, the identification number of the child device (child ID in the illustrated example) is stored. n+1 ) can be stored. In addition, if a stored slave unit is no longer in use due to a malfunction or other reason and it is desired to remove it, the identification number of that slave unit can be deleted from the storage unit 2.

[0022] Although not shown in FIG. 1, one identification number linked to the operating authority of the crane 1 that is the object of operation is stored as a specific identification number in the memory unit 2. The specific identification number is determined as follows and stored in the memory unit 2. X When crane 1 is in operation, the power supply is turned on in conjunction with crane 1 without the need to operate the power switch. X The device automatically transmits an initial connection request signal to each child device in turn, requesting connection with each child device. The initial connection request signal contains at least information indicating that it is an initial connection request, the identification number of the parent device (parent ID), and the identification number of the child device (for example, child ID1). A child device that receives the initial connection request signal and turns on its power (or a child device for which the user has subsequently performed a predetermined response action) will connect to the parent device R. X The response signal contains at least information indicating that it is a signal responding to the initial connection request and its own identification number. XAfter starting to transmit the initial connection request signal, the base unit R stores the identification number of the handset that transmitted the first received response signal as the specific identification number in the storage unit 2. When the specific identification number is determined, the base unit R X transmits to all the slave units the identification number of the slave unit that has become the specific identification number and information indicating that the identification number has become the specific identification number. This information is displayed on the display unit 16 of each slave unit (see Fig. 3), so that all users can see at a glance which slave unit currently has the right to operate. Note that the identification number of any slave unit may be stored in the storage unit 2 as the specific identification number from the beginning. Note that in the above description of the initial connection request signal, the master unit R X In the conventional method, unicast communication is performed to transmit signals to each slave device in turn, but broadcast communication may be performed to transmit necessary information to all slave devices.

[0023] Base unit R X The control unit 3 includes a received data analysis unit 8 , an authority switching unit 9 , a voice data transfer unit 10 , and a transmission data generation unit 11 . The received data analysis unit 8 analyzes the signal received from the slave unit by the antenna 6 and the receiving unit 5, and supplies the data contained in the signal to the required destination according to the purpose of the data. First, if the received signal is a control signal including the identification number of the slave unit that sent it and operation information for operating the crane 1, the received data analysis unit 8 checks whether the identification number included in the received control signal is a specific identification number by referring to the identification number (i.e., the specific identification number) linked to the operation authority stored in the memory unit 2. If the identification number is not a specific identification number, the received control signal is discarded as being a signal from a slave unit that does not have operation authority. If the identification number is a specific identification number, the operation signal included in the received control signal is sent to the drive mechanism of the crane 1.

[0024] Next, if the received signal is a data signal containing voice data of a voice input from the voice input unit 19 of the sub-unit (see FIG. 3 , described later) and the identification number of the sub-unit, or if the received signal is a control signal with voice data added, the received data analyzer 8 identifies the sub-unit that sent the signal by referring to the identification number stored in the memory unit 2, and the voice data transfer unit 10 sends the voice data contained in the signal to the transmission data generator 11. The transmission data generator 11 generates transmission data from the voice data and transmits the voice transmission data to sub-units other than the sending sub-unit. As a result, during operation of the crane 1, when a user operating a sub-unit with operating authority speaks to his / her own sub-unit, all users of the other sub-units can hear the voice. Furthermore, if a user operating a sub-unit without operating authority speaks to his / her own sub-unit, information can be conveyed by voice to all users of the other sub-units, including the user of the sub-unit with operating authority. Therefore, when operating authority is delegated during operation of the crane 1, communication between users is ensured, ensuring safety.

[0025] Next, a case where the received signal is a signal regarding the delegation of operation authority will be described. The delegation of operation authority in this embodiment can be broadly divided into two modes, which will be mentioned later in the description of the slave device.

[0026] In the first mode, a user of a slave unit having an operating authority sends a relinquishment signal to the master unit R to relinquish the operating authority. X A user of a slave unit who does not have the operating authority sends a request signal to the master unit R requesting the operating authority. X The relinquish signal contains at least information indicating that the operating authority is to be relinquished, and the identification number of the slave unit that currently has the operating authority, i.e., the specific identification number. The request signal contains at least information indicating that the operating authority is to be acquired, and the identification number of the other slave unit. When the request signal is transmitted to the master unit R, X When the message is sent to the parent device R X The master R sends a notification signal including the identification number of the slave that sent the request signal to the slave that has the operating authority. XWhen the authority switching unit 9 of the control unit 3 confirms that the received signal is a relinquishment signal and that the identification number contained therein is a specific identification number, and also confirms that the received signal is a request signal and that the identification number contained therein is an identification number previously stored in the storage unit 2, the authority switching unit 9 updates the contents stored in the storage unit 2 so that the current specific identification number is set to a normal identification number and the identification number contained in the request signal is set to a specific identification number. The authority switching unit 9 also sends necessary information regarding authority transfer to the transmission data generation unit 11 to generate transmission data regarding authority transfer. The transmission data generation unit 11 generates transmission data including the identification number of the slave unit that has newly acquired operating authority, and transmits this data as a notification signal to all slave units via the transmission unit 4 and the antenna 6.

[0027] In the second mode, a user of a slave unit having an operating right simultaneously transmits a relinquish signal and a request signal to designate another slave unit as a new subject of operating right to the master unit R. X The relinquish signal contains at least information indicating that the operating authority is to be relinquished, and the identification number of the slave unit that currently has the operating authority, i.e., the specific identification number. The request signal contains at least information indicating that the slave unit wishes to have the operating authority acquired, and the identification number of the other slave unit. The relinquish signal and the request signal do not have to be two signals that are sent separately, and may be a series of data that includes the necessary information, regardless of the name. Master unit R X The authority switching unit 9 of the control unit 3 confirms that the identification number included in the relinquishment signal is a specific identification number, and when it confirms that the identification number included in the request signal is an identification number previously stored in the storage unit 2, it updates the contents stored in the storage unit 2 so that the current specific identification number is set to a normal identification number and the identification number included in the request signal is set to a specific identification number. The authority switching unit 9 also sends necessary information regarding authority transfer to the transmission data generation unit 11 to generate transmission data regarding authority transfer. The transmission data generation unit 11 generates transmission data including the identification number of the slave unit that has newly acquired operating authority, and transmits the data as a notification signal to all slave units via the transmission unit 4 and the antenna 6.

[0028] A third mode in which the operating authority is transferred may be provided. In this mode, a user of a slave unit having the operating authority sends a relinquishment signal to the master unit R to relinquish the operating authority. X When the user of another slave unit who does not have the operating authority sends a request signal to the master unit R independently requesting the operating authority, X In this case, the parent device R X When the master unit R receives the request signal, it confirms that the slave unit that sent the request signal is the slave unit with the identification number pre-stored in the storage unit 2, and then sends a confirmation signal to the slave unit that has the operating authority as to whether or not to relinquish the operating authority. If a regular relinquishment signal is sent from the slave unit that has the operating authority, the master unit R X performs an operation to transfer the operating authority to the new slave unit, and the result of the transfer is transmitted to all slave units as a notification signal, as in the first and second modes.

[0029] Even if there is no slave unit with operating authority, basically, no problem occurs. In such a case, the crane 1 will stop operating because it cannot receive operation information from any of the slave units. However, due to the nature of the crane 1, which is a machine installed on the ground and performs its work, stopping the crane will not cause any problems. If the object to be operated is a flying machine such as a drone and it is currently flying, if operation information cannot be received from any of the slave units, an automatic driving device or the like must be installed to prevent interruptions in operation in order to continue the flight safely.

[0030] In addition, the parent unit R X Even if there is no transfer of operating authority, the base station R periodically transmits to each slave unit a notification signal informing the slave unit of the identification number of the slave unit having the operating authority, and a confirmation signal inquiring whether the slave unit intends to renounce or request the transfer of operating authority. X The information indicating the state of the crane 1 is generated by the transmission data generating unit 11 and is constantly transmitted to each slave machine as a crane state signal.

[0031] Figure 3 shows the slave T in the operation system. X-11. In this embodiment, as shown in FIG. 1, three slave units T X-1 T X-2 T X-3 In Figure 3, the sub-unit is X-1 Although the symbol is attached, other handset T X-2 , T X-3 The configuration is the same.

[0032] Handset T X-1 The device has a storage unit 12, a control unit 13, a transmission unit 14, a reception unit 15, a display unit 16, an input unit 17, an antenna 18, and an audio input / output unit 19. All components other than the control unit 13 are connected to the control unit 13 as described below, and the antenna 18 is connected to either the transmission unit 14 or the reception unit 15 via a switching means 20.

[0033] The storage unit 12 is composed of a first storage unit 12a made of a nonvolatile memory and a second storage unit 12b made of a volatile memory. The first storage unit 12a stores in advance the identification number of the parent device (parent ID) and its own identification number (own ID). The second storage unit 12b stores in advance the identification numbers of the child devices other than itself (child ID1 to child ID2). n-1 ) is stored in the memory. X-1 However, the parent unit R X When an initial connection request signal is received from the other handset T, a received data analysis unit 21 (described later) extracts the identification number of the other handset T from the received data and stores the extracted identification number in the second storage unit 12b. X-1 It will disappear when the power of the parent unit R is turned off. X From handset T X-1 Regardless of whether the signal sent to each slave T is unicast or broadcast, X-1 By the above operation of the received data analysis unit 21, the power is turned on and the parent device R X Each time a transmission is received from another handset, the identification number of the other handset can be stored.

[0034] Handset T X-1The control unit 13 includes a transmission data generation unit 22 and a reception data analysis unit 21 . The input unit 17 is connected to the transmission data generation unit 22. The input unit 17 can be operated by a user to input operation information for the crane 1, relinquishment of operation authority, designation of a party to whom the operation authority is to be delegated when the operation authority is relinquished, a request for operation authority to be made when the user does not have the operation authority, and other necessary information.

[0035] When the transmission data generating unit 22 receives the operation information of the crane 1 from the input unit 17, it generates transmission data by adding its own identification number stored in the first storage unit 12a to the operation information, and sends this to the transmitting unit 14. The transmitting unit 14 transmits this as a control signal from the antenna 18 to the parent unit R. X In this case, the identification number is transmitted to the base unit R as a specific identification number. X If the data is not stored in the memory unit 12 of the master unit R, X will discard this even if it is received.

[0036] When the transmission data generating unit 22 receives the information of abandoning the operating authority, it generates transmission data by adding its own identification number stored in the first storage unit 12a to the information, and sends this to the transmitting unit 14. The transmitting unit 14 transmits this as an abandonment signal from the antenna 18 to the master unit R. X In this case, if transmission data generation unit 22 has received information specifying the transferee of the abandoned operating authority from input unit 17, it generates transmission data by adding the identification number of the designated slave unit stored in first storage unit 12a to the information, and sends this to transmission unit 14. Transmission unit 14 transmits this as a request signal from antenna 18 to the master unit. As explained above, the abandon signal and request signal may be transmitted as a series of signals.

[0037] The receiving unit 15 is a base unit R X and sends the received data to the received data analysis unit 21. The received data analysis unit 21 analyzes the received data from the parent device R XFirst, the received data analysis unit 21 compares the identification number of the destination slave device contained in the received signal with its own identification number stored in the first storage unit 12a to confirm whether the signal is addressed to itself. Next, the received signal analysis unit 21 compares the identification number of the source master device contained in the received signal with the identification number of the legitimate master device R stored in the first storage unit 12a. X Compare the identification number of the X Check whether the signal is from

[0038] In this way, the received data analysis unit 21 determines whether the received signal is from the regular master unit R. X When it confirms that the signal was sent from the intended recipient, it supplies the data contained in the signal to the required destination according to the purpose of the data.

[0039] First, if the received signal is a notification signal notifying the identification number of the slave unit that currently has operating authority, the received data analysis unit 21 sends the sent information to the display unit 16 and causes the display unit 16 to display the identification number of the slave unit that has operating authority. Also, if the received signal is a notification signal notifying the identification number of the slave unit that is transmitting a request signal for operating authority, the received data analysis unit 21 causes the display unit 16 to display the identification number of the slave unit that is requesting operating authority. Also, if the received signal is a periodic confirmation signal that inquires of each slave unit whether it intends to relinquish or request operating authority, the received data analysis unit 21 causes the display unit 16 to display that fact. Also, if the received signal is a crane status signal, the received data analysis unit 21 causes the display unit 16 to display the operating status of the crane 1, etc. In this way, with this operation system, various information such as which slave unit has the operating authority, which slave unit wants the authority, and the status of the crane 1 can be displayed on the display unit 16 of each slave unit, so each user operating each slave unit can easily grasp the overall status of this operation system and the crane 1. This is very convenient for crane work and contributes to work safety.

[0040] The voice input / output unit 19 is connected to a transmission data generating unit 22 and a reception data analyzing unit 21, and the user of each slave unit can receive voice from the master unit R as described below. X A headset 23 consisting of a headphone and a microphone is connected to the audio input / output unit 19. X-1 The user who is operating the headset 23 wears it. When the user speaks into the microphone of the headset 23, the voice is sent to the transmission data generator 22. The transmission data generator 22 generates voice data. The voice data is carried on a control signal and transmitted from the transmitter 14 to the base unit R via the antenna 18. X As mentioned above, the parent device R X The control unit 3 (see FIG. 2) transfers the received voice data to the other slave units via the voice data transfer unit 10. In each slave unit, if the received control signal contains voice data, the received data analysis unit 21 sends it to the voice input / output unit 19, so that the user can hear the voices of other users through the headphones of the headset 23.

[0041] FIG. 4 is a diagram illustrating a typical situation at a site where a crane 1 is operated using the operation system of this embodiment. In this site, the crane 1 is installed on one side (the right side of the wall) of a wall W installed on the ground. The crane 1 lifts a load on one side of the wall W and lowers it on the other side (the left side of the wall W). In such operations, the crane 1 is often placed on one side of the wall W, and an operator holding an operation terminal for operating the crane 1 is placed on the same side as the crane 1. However, this can pose a risk to the work because the load suspension position cannot be seen on the other side of the wall W. Even if a supervisor is placed on the other side of the wall W and the operator works while communicating with the supervisor, the operator cannot fully grasp the status of the suspension position based solely on the supervisor's words, and the work remains uncertain. Therefore, it is conceivable to attach a camera to the tip of the boom 1a of the crane 1 to check the status of the suspension position. However, the method of wirelessly transmitting image data from the camera to the operator's operation terminal has the following problems. First, a widely used method is to use an interconnection method between electronic devices using international standards to connect a camera and an operating terminal. This is simple and inexpensive, but it has problems with communication speed and there is a time lag before image data reaches the operating terminal, making it unsuitable for safe work. Furthermore, there are also known image data transmitters and receivers that can transmit full HD image quality using the 5 GHz band as a transmission frequency, but while such systems have virtually no delay in data transfer, they are expensive and therefore not easily adoptable from a cost perspective.

[0042] The operation system of this embodiment is optimal for the above-mentioned site. Specifically, as shown in FIG. 4, one or more operators P1 and P2 are arranged on each side of a wall W, and each operator has a slave unit T X-1 , T X-2 The operator P1 on one side of the wall W holds the parent machine R mounted on the crane 1. X Handset T with operation authority X-1After the load has passed the wall W, operator P2 on the other side of the wall W receives the transfer of operation authority from operator P1, and operates the parent machine R mounted on the crane 1. X Handset T X-2 The control signal is sent by the control unit 1 to operate the crane 1 and lower the load to a predetermined position on the other side of the wall W. The operation authority is transferred between the slave units T X-1 and handset T X-2 Since the operators P1 and P2 communicate with each other as needed, there is no stagnation in the work, and the work can be done efficiently and safely. Furthermore, this operation system can be used with the main unit R even when the number of child units is increased. X Therefore, there is no need to add a receiver on the parent unit R. X is inexpensive because there is no need to worry about additional receivers or the space required for wiring, making it ideal for sites where high costs cannot be spent.

[0043] In the operation system for crane 1 described above, communication between the parent unit and the child units is performed wirelessly. However, the communication medium between the parent unit and the child units is not limited to radio waves. For example, the parent unit and multiple child units can be connected by wire to achieve the same functions and effects as the above-described embodiment. For example, in a site such as a steelworks where interference may occur if many wireless devices are brought in and used, an embodiment in which the parent unit and multiple child units are connected by wire is preferable as the operation system of the present invention. [Explanation of symbols]

[0044] 1...Crane to be operated (Configuration of parent unit) R X …Main unit 2...Storage section 3...Control unit 4...Transmitter 5...Receiver 6...Antenna 7. Switching method 8...Received data analysis section 9...Authority switching section 10...Audio data transfer section 11...Transmission data generation unit (Configuration of child device) T X-1 , T X-2 , T X-3 … Handset 12...Storage section 12a...1st storage section 12b…Second storage unit 13...Control unit 14...Transmitter 15...Receiver 16…Display section 17...Input section 18...Antenna 19...Audio input / output section 20...Switching method 21...Received data analysis unit 22...Transmission data generation unit 23...Headset

Claims

1. a plurality of slave units that transmit control signals including unique identification numbers and operation information of operation targets; a master unit that receives a control signal from the slave unit and sends operation information to an object to be operated; The parent device is a storage unit that stores identification numbers of the plurality of slave devices and a specific identification number that is a single identification number associated with an operation authority of an operation target; a single receiving unit that receives control signals transmitted from the plurality of slave units; a control unit that outputs, to an operation target, operation information of a control signal including a specific identification number among the control signals received by the receiving unit; It has When the parent device is powered on, the parent device automatically performs unicast communication to transmit an initial connection request signal requesting connection with the child device to each child device in turn, or broadcast communication to transmit the signal to all child devices; The slave unit that has received the initial connection request signal transmits a response signal including its own identification number to the master unit; An operating system characterized in that the parent unit determines the identification number of the child unit that sent the first response signal it received after starting to send an initial connection request signal as a specific identification number and stores it in the memory unit.

2. The slave unit, whose own identification number is a specific identification number, transmits a relinquishment signal to the master unit, requesting that its own identification number cease to be a specific identification number; When another handset whose own identification number is not a specific identification number transmits a request signal to the base unit requesting that its own identification number become a specific identification number, 2. The operation system according to claim 1, wherein the control unit of the master unit analyzes the abandon signal and the request signal and sets the identification numbers of the other slave units to specific identification numbers.

3. The handset whose own identification number is a specific identification number, When the base unit transmits a relinquishment signal requesting that its own identification number cease to be a specific identification number and a request signal requesting that the identification number of a specific handset other than its own become a specific identification number, 2. The operation system according to claim 1, wherein the control unit of the master unit analyzes the abandon signal and the request signal and sets the identification number of the other specific slave unit to a specific identification number.

4. the slave unit generates and transmits audio data to the master unit; 4. The operation system according to claim 1, wherein the control unit of the master unit transfers the audio data received from the slave unit to another of the slave units.

5. A parent device of an operation system that operates an operation target, a storage unit that stores a unique identification number and identification numbers of a plurality of slave devices that transmit a control signal including operation information of an operation target, and a specific identification number that is a single identification number associated with an operation authority of the operation target; a single receiving unit that receives control signals transmitted from the plurality of slave units; a control unit that outputs, to an operation target, operation information of a control signal including a specific identification number among the control signals received by the receiving unit; and When the parent device is powered on, the parent device automatically performs unicast communication to transmit an initial connection request signal requesting connection with the child device to each child device in turn, or broadcast communication to transmit the signal to all child devices; The slave unit that has received the initial connection request signal transmits a response signal including its own identification number to the master unit; A master unit of an operating system characterized in that the master unit determines the identification number of the slave unit that sent the first response signal it received after starting to send an initial connection request signal as a specific identification number and stores it in the memory unit.

6. An operating system as described in claim 1, characterized in that when the sub-unit that does not have operating authority sends a request signal to the parent unit requesting operating authority and the parent unit receives the request signal, the parent unit confirms that the sub-unit that sent the request signal is the sub-unit with the identification number pre-stored in the memory unit, and then sends a confirmation signal to the sub-unit that has operating authority asking whether or not to relinquish operating authority, and when a relinquishment signal is sent from the sub-unit that has operating authority, the parent unit performs an operation to delegate operating authority to a new sub-unit.

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