CN113300924A - Control system and control method for access device - Google Patents

Abstract

A control system and a control method for access equipment are used for simplifying the access flow of master and slave equipment and realizing the efficient access of the master and slave equipment. In this application, a control device in the control system may be connected to a first module including a first group of devices through a first signal line, and the control device may send a control signal through the first signal line, so that a first communication module in the first module may turn on or off a connection between the control device and the first group of devices according to the control signal. Therefore, the connection between the control equipment and the first group of equipment can be controlled conveniently, and the subsequent control equipment can access the first group of equipment conveniently.

Description

Control system and control method for access device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a control system and a control method for an access device.

Background

In Information Communication Technology (ICT) devices of various types, there is a case where a master device hangs up a plurality of slave devices via a bus, and in order to ensure that the master device can uniquely access the slave devices via the bus, it is generally necessary to configure access addresses for the slave devices in advance.

The current common configuration mode is that a master device sequentially configures access addresses for a plurality of cascaded slave devices. The cascade connection of the plurality of slave devices means that the plurality of slave devices are connected in series, and the master device configures an access address for each slave device in sequence according to the series connection sequence of the plurality of slave devices. Until all slave devices are configured with access addresses. The configuration mode needs to configure the access address for each slave device step by step, and when the number of slave devices hung down by the master device is large, the time consumption is long.

As can be seen from the above, the configuration of the access address of the slave device is complex, and therefore, the master device cannot efficiently access the slave device.

Disclosure of Invention

The application provides a control system and a control method for access equipment, which are used for simplifying the access flow of master and slave equipment and realizing efficient access of the master and slave equipment.

In a first aspect, an embodiment of the present application provides a control system, where the control system includes a control device and a first module, the first module includes a first communication module and a first group of devices, the first group of devices includes at least one device, and the first communication module is connected to the first group of devices. The control equipment is connected with the first communication module through a first signal line. When the control device needs to access the devices in the first group of devices, the control device can transmit a control signal through the first signal line; and then, the first communication module in the first module can control the control device to be switched on or off with the first group of devices according to the control signal.

Through the control system, the control equipment can conveniently control the connection between the first group of equipment and the control equipment in the first module to be switched on or switched off through the control signal of the first signal line, so that by adopting the control mode, the control equipment does not need to pass through a complex access address configuration flow, the control equipment can be connected with the first group of equipment rapidly and conveniently, and subsequent access to the equipment in the first group of equipment is facilitated.

In a possible implementation method, the control system further includes a second signal line, and the control device is connected to the first communicating module through the second signal line; when the first communication module controls the control device to be communicated with the first group of devices according to the control signal, the control device can access at least one device in the first group of devices through the second signal line.

Through the control system, when the control equipment is communicated with the first group of equipment, the control equipment can directly access the equipment in the first group of equipment through the second signal line, and by adopting the mode, the control equipment does not need to pass through a complex access address configuration flow, can conveniently access the equipment in the first group of equipment, and can efficiently access the equipment in the first group of equipment.

In a possible implementation method, the control device may be connected to a plurality of modules, for example, when the control device is further connected to a second module, the first module may further include a counter, and the second module includes a second connection module and a second group of devices, where the second group of devices includes at least one device; the first signal line is connected with the second communication module through the counter.

After the counter can adjust the control signal in the first signal line, the second connection module can control the control device to be connected or disconnected with the second group of devices according to the control signal adjusted by the counter in the first signal line.

Through the control system, when the control equipment is connected with the plurality of modules, the control equipment can control the connection between the control equipment and the equipment in the second group of equipment through the first signal line so as to access the equipment in the second group of equipment subsequently, a process of configuring an access address for the equipment in the second group of equipment can be omitted, and a process of accessing the equipment in the second group of equipment by the control equipment is simplified.

In one possible implementation method, the control device is connected to the second communication module via a second signal line; when the second communication module controls the communication between the control device and the second group of devices according to the control signal, the control device can access at least one device in the second group of devices through the second signal line.

Through the control system, when the control equipment is communicated with the second group of equipment, the control equipment can directly access the equipment in the second group of equipment through the second signal line, and by adopting the mode, the control equipment does not need to pass through a complex access address configuration flow, can conveniently access the equipment in the second group of equipment, and can efficiently access the equipment in the second group of equipment.

In one possible implementation, upon conduction between the control device and the first group of devices, the control device may access the devices in the first group of devices through the second signal line based on the physical addresses of the devices. The physical addresses of different devices in the first set of devices are different.

By the control system, when the control equipment needs to access the equipment in the first group of equipment, the control equipment can access the equipment only through the physical address of the equipment in the first group of equipment without configuring an access address for the equipment in advance, and further, the process of accessing the equipment in the first group of equipment by the control equipment is simplified.

In a possible implementation method, when the control device is switched on with the first group of devices, the control device may also access the devices in the first group of devices through the second signal line based on the access addresses configured for the devices in the second group of devices in advance. The access addresses of different devices in the first set of devices are different.

By the control system, when the control equipment needs to access the equipment in the first group of equipment, the control equipment can also access the equipment in the first group of equipment through the access address of the equipment in the first group of equipment, so that the control system is suitable for different application scenes, and the application range is expanded.

In one possible implementation, upon conduction between the control device and the second group of devices, the control device may access the devices of the second group of devices through the second signal line based on the physical addresses of the devices.

Through the control system, when the control device needs to access the device in the second group of devices, the control device only needs to access the device through the physical address of the device in the second group of devices, and the access address does not need to be configured in advance for the device in the second group of devices, so that the process of accessing the device in the second group of devices by the control device is further simplified.

In a possible implementation method, when the control device is switched on with the second group of devices, the control device may also access the devices in the second group of devices through the second signal line based on the access addresses configured for the devices in the second group of devices in advance. The access addresses of different devices in the second set of devices are different.

Through the control system, when the control equipment needs to access the equipment in the second group of equipment, the control equipment can also access the equipment through the access address of the equipment, so that the control system is suitable for different application scenes, and the application range is expanded.

In one possible implementation method, there may be devices in the first group of devices and the second group of devices that have the same physical address. Devices with the same access address may also be present in the first set of devices and the second set of devices.

Through the control system, the devices with the same physical address or access address can exist in different groups of devices, and the configuration of the physical address and the access address of the devices can be simplified.

In a possible implementation method, when the first communication module controls the connection or disconnection between the control device and the first group of devices according to the control signal, the first communication module may compare a pre-configured target signal with a signal of the first signal line; after determining that the control signal of the first signal line is consistent with the target signal, the control device may be controlled to conduct with at least one device in the first group of devices. The control device may be controlled to disconnect from at least one device of the first set of devices upon determining that the control signal of the first signal line is inconsistent with the target signal.

Through above-mentioned control system, the control signal of target signal and first signal line can be more convenient through comparing to first UNICOM module, control equipment and the first equipment in the group of equipment between be connected.

In a possible implementation method, when the second connection module controls the control device to be connected or disconnected with the second group of devices according to the control signal adjusted by the counter in the first signal line, the second connection module may compare the pre-configured target signal with the control signal adjusted by the counter; after determining that the counter adjusted control signal is consistent with the target signal, the control device may be controlled to conduct with at least one device of the second group of devices. The control device may be controlled to disconnect from at least one device of the second set of devices upon determining that the counter adjusted control signal is not consistent with the target signal.

Through the control system, the second communication module can more conveniently control the connection between the control equipment and at least one equipment in the second group of equipment by comparing the control signals of the target signal and the first signal line.

In a second aspect, an embodiment of the present invention provides a control method for an access device, where the control method is applied to a control system, the control system includes a control device and a first module, the first module includes a first connection module and a first group of devices, the first group of devices includes at least one device, and the first connection module is connected to the first group of devices; the control equipment is connected with the first communication module through a first signal line. When the control device needs to access a device in the first set of devices, it may control the conduction between the control device and at least one device in the first set of devices. Specifically, the control device may transmit the control signal through the first signal line; and then, the first communication module controls the control equipment to be connected or disconnected with the first group of equipment according to the control signal.

In a possible implementation method, the control system may further include a second signal line, and the control device is connected to the first communication module through the second signal line; the control device can access at least one device in the first group of devices through the second signal line when the first communication module controls the conduction between the control device and the first group of devices according to the control signal.

In one possible implementation, the control device may connect a plurality of modules. For example, the control system further comprises a second module, the first module further comprising a counter, the second module comprising a second connectivity module and a second set of devices, the second set of devices comprising at least one device; the first signal line is connected with the second communication module through the counter. When the control device needs to access a device in the second set of devices, it may control the conduction between the control device and at least one device in the second set of devices. Specifically, the control device may first transmit a control signal through the first signal line, and the counter adjusts the control signal in the first signal line; and then the second communication module controls the control equipment to be connected or disconnected with the second group of equipment according to the control signal in the first signal line and after the counter is adjusted.

In one possible implementation method, the control device is connected to the second communication module via a second signal line; the control device can access at least one device in the second group of devices through the second signal line when the second communication module controls the communication between the control device and the second group of devices according to the control signal.

In a possible implementation method, when the control device accesses at least one device in the first group of devices through the second signal line, the device may be accessed through the second signal line based on a physical address of any one of the devices in the first group of devices, where physical addresses of different devices in the first group of devices are different. The devices in the first group of devices may also be accessed through the second signal line based on access addresses previously assigned to the devices, wherein the access addresses of different devices in the first group of devices are different.

In a possible implementation method, when the control device accesses at least one device in the second group of devices through the second signal line, the device may be accessed through the second signal line based on a physical address of any one of the devices in the second group of devices, where physical addresses of different devices in the second group of devices are different. The device may also be accessed through the second signal line based on an access address previously assigned to a device in the second group of devices, where the access addresses of different devices in the second group of devices are different.

In one possible implementation method, there may be devices in the first group of devices and the second group of devices that have the same physical address. Devices with the same access address may also be present in the first set of devices and the second set of devices.

In a possible implementation method, when the first communication module controls the control device to be connected or disconnected with the first group of devices according to the control signal, the first communication module may compare a pre-configured target signal with a signal of the first signal line; and after the signal of the first signal line is determined to be inconsistent with the target signal, the control device is controlled to be disconnected with at least one device in the first group of devices.

In a possible implementation method, when the second communication module controls the control device to be connected or disconnected with the second group of devices according to the control signal adjusted by the counter in the first signal line, the second communication module compares the pre-configured target signal with the control signal adjusted by the counter; and after the control signal adjusted by the counter is determined to be consistent with the target signal, controlling the conduction between the control device and at least one device in the second group of devices. And after the control signal adjusted by the counter is determined to be inconsistent with the target signal, controlling the control device to be disconnected with at least one device in the second group of devices.

In a third aspect, an embodiment of the present application further provides a control apparatus, where the control apparatus includes a processing unit and a memory, and the memory is coupled with the processing unit. The processing unit may comprise at least one processor, and the processing unit executes the program instructions in the memory to perform the method provided by the second aspect or any possible implementation manner of the second aspect.

In a fourth aspect, this embodiment also provides a computer-readable storage medium, in which a software program is stored, and when the software program is read and executed by one or more processors, the software program can implement the method provided by any one of the designs of the second aspect.

In a fifth aspect, the present application also provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the above aspects.

Drawings

FIG. 1 is a schematic structural diagram of a first control system provided in the present application;

FIG. 2 is a schematic structural diagram of a second control system provided in the present application;

FIG. 3 is a schematic structural diagram of a third control system provided in the present application;

FIG. 4 is a schematic diagram of a control method provided herein;

fig. 5 is a schematic diagram of a control device provided in the present application.

Detailed Description

In the control system provided by the application, the control device can be connected with a first module comprising a first group of devices through a first signal line, and the control device can send a control signal through the first signal line, so that a first communication module in the first module can be used for switching on or switching off the connection between the control device and the first group of devices according to the control signal. Therefore, the connection between the control equipment and the first group of equipment can be controlled conveniently. In case of conduction between the control device and the first group of devices, the control device may access any one of the devices of the first group of devices through the second signal line. In this application embodiment, the control device may control connection between the first group of devices and the control device through the control signal transmitted in the first signal line, and then, the control device may access the first group of devices through the second signal line relatively conveniently.

In this embodiment of the application, the first communication module may include a first switch module and a first detection circuit, and the function of the first communication module may be implemented by the first switch module and the first detection circuit in cooperation. Referring to fig. 1, a control system provided in an embodiment of the present application is described below, where the control system 100 includes a control device 110 and a first module 120, the first module 120 includes a first switch module 121, a first detection circuit 122, and a first group of devices 123, and the first group of devices 123 includes at least one device.

In the first module 120, a first switch module 121 is connected to the first group of devices 123, and a first detection circuit 122 is connected to the first switch module 121.

The control device 110 may be connected to the first module 120 through a signal line. Illustratively, the control device 110 is connected to the first detection circuit 122 through a first signal line 10, and the control device 110 is connected to the first switch module 121 through a second signal line 20.

The control device 110 may transmit a control signal through the first signal line 10 to cause the first detection module to open or close the connection between the control device 110 and at least one device of the first set of devices 123 by controlling the first switching module 121. For example, when the control device 110 transmits a control signal through the first signal line 10, the first detection circuit 122 may detect the control signal in the first signal line 10, and control the first switch module 121 according to the detected control signal; the first switching module 121 switches on or off the connection between the control device 110 and at least one device in the first group of devices 123 under the control of the first detection circuit 122.

In case the connection between the control device 110 and at least one device of the first set of devices 123 is conductive, the control device 110 may access the devices of the first set of devices 123 through the second signal line 20.

It should be noted that, when the first switch module 121 turns on the connection between the control device 110 and at least one device in the first group of devices 123 under the control of the first detection circuit 122, only the connection between the control device 110 and a part of the devices in the first group of devices 123 may be turned on, or the connection between the control device 110 and all the devices in the first group of devices 123 may be turned on. When the first switch module 121 disconnects the control device 110 from at least one device in the first group of devices 123 under the control of the first detection circuit 122, only the control device 110 may be disconnected from some devices in the first group of devices 123, or the control device 110 may be disconnected from all devices in the first group of devices 123.

As can be seen from the above, the two signal lines between the control device 110 and the first module 120 are different in function, and the following describes a manner in which the control device 110 triggers the first detection circuit 122 to control the first switch module 121 to turn on or off the connection between the control device 110 and at least one device in the first group of devices 123 through the first signal line 10, and a manner in which the control device 110 accesses the devices in the first group of devices 123 through the second signal line 20, respectively.

(1) The control device 110 triggers the first detection circuit 122 to control the first switch module 121 to switch on or off the connection between the control device 110 and at least one device in the first group of devices 123 through the first signal line 10.

The first detection circuit 122 in the first module 120 may configure the first target signal in advance, for example, the first target signal may be configured to be 1111, and when the first detection circuit 122 detects that the signal in the first signal line 10 is consistent with the first target signal, the first switch module 121 may be controlled to turn on the connection between the control device 110 and at least one device in the first group of devices 123; when the first detection circuit 122 detects that the signal in the first signal line 10 does not coincide with the first target signal, the first switch module 121 may be controlled to disconnect the control device 110 from at least one device in the first group of devices 123.

The embodiment of the present application is not limited to the configuration of the first detection circuit 122, and for example, the first detection circuit 122 may be formed by a logic device or may include a chip capable of detecting a control signal. Any circuit capable of detecting the comparison between the control signal in the first signal line 10 and the pre-configured target signal can be used as the first detection circuit 122.

The embodiment of the present application also does not limit the structure of the first switch module 121, for example, the first switch module 121 may be a diode or a transistor, and any device or module formed by multiple devices that can turn on or off the connection between the control device 110 and the at least one first group device 123 under the control of the first detection circuit 122 is suitable for the embodiment of the present application.

(2) The control device 110 accesses devices in the first set of devices 123 via the second signal line 20. Here, the device that the control device 110 can access through the second signal line 20 is a device that the first switch module 121 is connected to the control device 110 under the control of the first detection circuit 122.

There are various ways of controlling the access of the device 110 to the devices in the first set of devices 123, and two methods of accessing the devices in the first set of devices 123 are described below:

1) the controlling device 110 accesses the devices in the first set of devices 123 by their physical addresses.

The physical address of a device in the first set of devices 123 may be an address that is fixed in the device at the time of factory shipment of the device (e.g., a code value that is fixed in the device software at the time of factory shipment). In this embodiment, the physical address may include two parts, where one part of the address is a factory-solidified address, and the other part of the address is preset by a user. For example, the I2C device on the integrated circuit (I2C) bus has a total of 7 bits, the first 4 bits are fixed by the manufacturer to distinguish different devices, and the remaining 3 bits can be configured by the user, and the user can configure the physical address of the I2C device by dialing the switches, pins, pull-up resistors, and the like in the I2C device.

The control device 110 may pre-store the physical addresses of the respective devices in the first set of devices 123, and when the control device 110 needs to access a device in the first set of devices 123, the control device 110 may access the device based on the physical address of the device.

The control device 110 may send a broadcast message carrying a physical address of the device through the second signal line 20, each device in the first module 120 may receive the broadcast message, and after the device indicated by the physical address carried in the broadcast message receives the broadcast message, it is determined that the device is consistent with its own physical address, and a response message may be sent to the control device 110 through the second signal line 20. The control device 110 can then interact with the device for data.

2) The controlling device 110 accesses the devices in the first set of devices 123 via their access addresses.

The access addresses of the devices in the first set of devices 123 may be addresses that the control device 110 has previously allocated for the devices, in which first set of devices 123 the access addresses of different devices differ. That is, in the first set of devices 123, one access address may uniquely identify one device.

The embodiment of the present application does not limit the allocation manner of the access address, for example, the control device 110 may number each device in the first group of devices 123 based on the connection order of each device in the first group of devices 123, and use the number as the access address of the device in the first group of devices 123.

The control device 110 may previously store the access addresses of the respective devices in the first group of devices 12 and the correspondence between the access addresses of the respective devices and the physical addresses of the devices. When access to any of the devices in the first set of devices 123 is required, the control device 110 may access the device based on the access address of the device.

The control device 110 may determine the physical address of each device according to the access address of the device based on the corresponding relationship between the access address of the device and the physical address of the device, and send a broadcast message carrying the physical address of the device through the second signal line 20, each device 123 in the first group of devices 123 may receive the broadcast message, and after receiving the broadcast message, the device indicated by the physical address carried in the broadcast message determines that the physical address of the device is consistent with the physical address of the device, and may send a response message to the control device 110 through the second signal line 20. The control device 110 can then interact with the device for data.

It should be noted that the two signal lines referred to in the embodiment of the present application function differently, wherein the second signal line 20 may be a bus for transmitting the traffic data between the control device 110 and the first group of devices 123. The first signal line 10 is used for transmitting a control signal, which may be a binary signal composed of 1 or 0, for triggering the first detection circuit 122 to control the first switch module 121.

In the control system shown in fig. 1, the control device 110 is connected to one first module 120 as an example, and in fact, the number of modules connected to the control device 110 is not limited in the embodiment of the present application, and in order to distinguish from the first module 120, in the embodiment of the present application, the control device 110 is connected to a plurality of modules by taking the control device 110 as an example and connecting the first module 120 and the second module as an example.

Similar to the first communication module, the second communication module in the second module may include a second switch module and a second detection circuit, and the function of the second communication module may be implemented by the cooperation of the second switch module and the second detection circuit; as shown in fig. 2, the control system 100 includes a control device 110, a first module 120, and a second module 130. The first module 120 includes a first switch module 121, a first detection circuit 122, a first set of devices 123, and a counter 124. The second module 130 includes a second switch module 131, a second detection circuit 132, and a second set of devices 133.

In the first module 120, a first switch module 121 is connected to the first group of devices 123, and a first detection circuit 122 is connected to the first switch module 121.

In the second module 130, a second switching module 131 is connected to a second set of devices 133 and a second detection circuit 132 is connected to the second switching module 131.

The control device 110 may be connected to the first module 120 through a signal line. The manner in which the control device 110 is connected to the first module 120 through the signal line can be referred to the related description in the control system shown in fig. 1, and is not described herein again.

Similarly, the control device 110 may also be connected to the second module 130 through a signal line. For example, after the first signal line 10 is connected to the first detection circuit 122 in the first module 120, the counter 124 in the first module 120 may be connected to the second detection circuit 132 in the second module 130, and the control device 110 is connected to the second switch module 131 through the second signal line 20.

The control device 110 may transmit a control signal through the first signal line 10, and when the control signal in the first signal line 10 passes through the counter 124 in the first module 120, the counter 124 adjusts the control signal in the first signal line 10. The embodiment of the present application does not limit the manner in which the counter 124 adjusts the control signal in the first signal line 10. For example, the counter 124 may perform an addition process on the control signal in the first signal line 10, so that the signal in the first signal line 10 is added by one after passing through the counter 124. The counter 124 may also be adjusted in other ways, such as an add-two process.

For example, when the signal transmitted by the control device 110 through the first signal line 10 is 1110, the control signal transmitted through the first signal line 10 becomes 1111 after the control signal in the first signal line 10 is subjected to an addition process by the counter.

The second detection circuit 132 in the second module 130 may detect the adjusted control signal in the first signal line 10, and control the second switch module 131 according to the detected control signal; the second switching module 131 switches on or off the connection between the control device 110 and at least one device of the second set of devices 133 under the control of the second detection circuit 132.

In case the connection between the control device 110 and at least one device of the second set of devices 133 is conductive, the control device 110 may access the devices of the second set of devices 133 via the second signal line 20.

As can be seen from fig. 2, in the manner in which the control device 110 connects the first module 120 and the second module 130 through the second signal line 20, the first module 120 and the second module 130 are connected in parallel. In the manner that the control device 110 connects the first module 120 and the second module 130 through the first signal line 10, the first module 120 and the second module 130 are connected in series, and the signal in the first signal line 10 needs to pass through the first module 120 to be transmitted to the second module 130.

The roles of the two signal lines between the control device 110 and the second module 130 are different, and the following describes the manner in which the control device 110 triggers the second detection circuit 132 to control the second switch module 131 to turn on or off the connection between the control device 110 and at least one device in the second group of devices 133 through the first signal line 10, and the manner in which the control device 110 accesses the devices in the second group of devices 133 through the second signal line 20, respectively.

(1) The control device 110 triggers the second detection device to control the second switch module 131 to switch on or off the connection between the control device 110 and at least one device in the second group of devices 133 through the first signal line 10.

The second detection circuit 132 in the second module 130 may pre-configure the second target signal, such as configuring the second target signal to 1111. When the second detection circuit 132 detects that the control signal in the first signal line 10 is consistent with the second target signal, the second switch module 131 may be controlled to turn on the connection between the control device 110 and at least one device in the second group of devices 133; when the second detection circuit 132 detects that the signal in the first signal line 10 does not coincide with the second target signal, the second switch module 131 may be controlled to disconnect the control device 110 from at least one device of the second set of devices 133.

Since the control signal in the first signal line 10 detected by the second detection circuit 132 is the control signal adjusted by the counter 124 in the first module 120, when the connection between the control device 110 and the second group of devices 133 in the second module 130 needs to be conducted, the signal transmitted by the control device 110 through the first signal line 10 does not need to be the same as the second target signal pre-configured in the second detection circuit 132, but the control signal transmitted by the control device 110 through the first signal line 10 is required to be the same as the second target signal pre-configured in the second detection circuit 132 after the control signal is adjusted by the counter 124 in the first module 120.

For example, when the second target signal preconfigured by the second module 130 is 1111, the control signal of the signal transmitted by the control device 110 through the first signal line 10 after being adjusted by the counter 124 in the first module 120 is 1111. The initial control signal transmitted by the control device 110 through the first signal line 10 should be 1110.

Taking the adjustment of the counter 124 to the signal as an example, when the second target signal preconfigured by the second module 130 is 1101, the control signal of the control signal transmitted by the control device 110 through the first signal line 10 after being adjusted by the counter 124 in the first module 120 is 1101. The initial control signal transmitted by the control device 110 through the first signal line 10 should be 1100.

The second target signal preconfigured in the second detection circuit 132 may be the same as or different from the second target signal preconfigured in the first detection circuit 122. When the second target signal preconfigured in the second detection circuit 132 and the second target signal preconfigured in the first detection circuit 122 may be the same, only the same target signal needs to be configured for the first detection circuit 122 and the second detection circuit 132 in a unified manner, so that the configuration cost can be effectively saved, and the efficiency is improved.

Like the first detection circuit 122, the embodiment of the present application does not limit the configuration of the second detection circuit 132, and any circuit capable of detecting the comparison between the control signal in the first signal line 10 and the pre-configured second target signal can be used as the second detection circuit 132.

Like the first switch module 121, the present embodiment also does not limit the structure of the second switch module 131, and any device or module with multiple devices that can turn on or off the connection between the control device 110 and the at least one second group device 133 under the control of the second detection circuit 132 is suitable for the present embodiment.

(2) The control device 110 accesses devices in the second set of devices 133 via the second signal line 20.

The manner in which the control device 110 accesses the second set of devices 133 via the second signal line 20 is the same as the manner in which the control device 110 accesses the first set of devices 123 via the second signal line 20, and is not described in detail here.

It should be noted that the embodiment of the present application allows devices with the same physical address to exist in the first group of devices 123 and the second group of devices 133, and also allows devices with the same access address to exist in the first group of devices 123 and the second group of devices 133. This is because the control device 110 may be conducted with a group of devices in the first module 120 or the second module 130 through the control signal transmitted in the first signal line 10. In the case where the control device 110 is turned on with a group of devices included in one of the modules, the control device 110 can uniquely access the device through a physical address or an access address of the device. Even if there are devices with the same physical address or the same access address in the two modules, since the control device 110 is only connected to one group of devices in one of the modules and not connected to one group of devices in the other module, the control device 110 can only access one device in the group of devices currently connected to the control device 110 through the physical address or the access address of the device and cannot access a device in the group of devices in the other module. Allowing devices in the first set of devices 123 and the second set of devices 133 having the same physical address or access address also makes the configuration process of the physical address or access address at a previous date simpler.

As can be seen from the above, when the control device 110 connects a plurality of modules, the corresponding detection circuit in each module can detect the control signal transmitted by the control device 110 in the first signal line 10 to turn on or off the connection between the control device 110 and the devices in the respective modules. And the modules are connected in series via the first signal line 10, the counter in the previous module (e.g., the first module 120) can adjust the signal in the first signal line 10 to change the signal transmitted in the first signal line 10 by the detection circuit in the next module. With this design, the control device 110 can be enabled to control the connection between the device in any one of the modules and the control device 110 in a targeted manner.

It should be noted that the setting of the target signal (the first target signal or the second target signal) in each module (e.g. the first module and the second module) and the adjustment of the control signal by the counter are performed in a manner that ensures that the control device 110 can be conducted with a group of devices in at most one module to which the control device 110 is connected when the control device 110 transmits the control signal through the first signal line 10. The number of bits of the control signal is not limited in the embodiment of the present application, and the number of bits of the control signal transmitted in the first signal line 10 may be determined according to the number of modules connected by the control device 110 through the second signal line, for example, when the control device 110 is connected to four modules, the control signal may be set to four bits, and the target signal of the detection circuit in each module is uniformly set to 1111, that is, the number of bits of the control signal may be the same as the number of modules.

In order to more clearly show the control system provided in the embodiment of the present application, taking the control device 110 connected to four modules as an example, the control system provided in the embodiment of the present application is further described.

As shown in fig. 3, a control system provided in the embodiment of the present application includes a control device 110 and four modules, which are a first module 120, a second module 130, a third module 140, and a fourth module 150.

The first module 120 includes a first switch module 121, a first detection circuit 122, a first set of devices 123, and a counter 124.

The second module 130 includes a second switch module 131, a second detection circuit 132, a second set of devices 133, and a counter 134.

The third module 140 includes a third switching module 141, a third detection circuit 142, a third set of devices 143, and a counter 144. The third set of devices 143 includes at least one device.

The fourth module 150 includes a fourth switch module 151, a fourth detection circuit 152, and a fourth set of devices 153. The fourth set of devices 153 includes at least one device.

The counter 124, the counter 134, and the counter 144 are each an addition counter, and can add one to the signal in the first signal line 10.

In the first module 120, a first switch module 121 is connected to the first group of devices 123, and a first detection circuit 122 is connected to the first switch module 121.

In the second module 130, a second switching module 131 is connected to a second set of devices 133 and a second detection circuit 132 is connected to the second switching module 131.

In the third module 140, a third switching module 141 is connected to a third set of devices 143, and a third detection circuit 142 is connected to the third switching module 141.

In the fourth module 150, a fourth switching module 151 is connected to a fourth group device 153, and a fourth detection circuit 152 is connected to the fourth switching module 151.

The control device 110 is connected to the first detection circuit 122 in the first module 120 via a first signal line 10, the first signal line 10 is connected to the second detection circuit 132 in the second module 130 via a counter 124, to the third detection circuit 142 in the third module 140 via a counter 134, and to the fourth detection circuit 152 in the fourth module 150 via a counter 144.

The control device 110 is connected to the first switching module 121 in the first module 120, the second switching module 131 in the second module 130, the third switching module 141 in the third module 140, and the fourth switching module 151 in the fourth module 150 through the second signal line 20, respectively.

As can be seen from fig. 3, in the manner in which the control device 110 connects the respective modules through the second signal line 20, the respective modules are connected in parallel. In the mode that the control device 110 connects the modules through the first signal line 10, the modules are connected in series, and the signal in the first signal line 10 needs to pass through the previous module before being transmitted to the next module.

The preconfigured target signals in the first detection circuit 122 in the first module 120, the second detection circuit 132 in the second module 130, the third detection circuit 142 in the third module 140, and the fourth detection circuit 152 in the fourth module 150 may be the same, e.g. may all be configured as 1111.

The manner in which the control device 110 accesses the devices in the respective modules is explained below separately.

1. When the control device 110 needs to access a device in the first set of devices 123 in the first module 120.

The control device 110 may send an initial control signal 1111 through the first signal line 10, and the first detection circuit 122 in the first module 120 detects the signal in the first signal line 10, and after determining that the signal is consistent with the target signal, controls the first switch module 121 to turn on the connection between the control device 110 and at least one device in the first group of devices 123.

Since the control signal of the first signal line 10 is adjusted to 0000 through the counter 124 in the first module 120, the control signal of the first signal line 10 detected by the second detection circuit 132 in the second module 130 is 0000, which is inconsistent with the target signal, the second detection circuit 132 controls the second switch module 131 to disconnect the control device 110 from at least one device in the second group of devices 133.

The control signal of the first signal line 10 is adjusted to 0001 through the counter 124 in the first module 120 and the counter 134 in the second module 130, the control signal of the first signal line 10 detected by the third detection circuit 142 in the third module 140 is 0001, which is inconsistent with the target signal, and the third detection circuit 142 controls the third switching module 141 to disconnect the control device 110 from at least one device in the third set of devices 143.

The control signal of the first signal line 10 is adjusted to 0010 through the counter 124 in the first module 120, the counter 134 in the second module 130 and the counter 144 in the third module 140, the control signal of the first signal line 10 detected by the fourth detection circuit 152 in the fourth module 150 is 0010, which is inconsistent with the target signal, and the fourth detection circuit 152 controls the fourth switching module 151 to disconnect the control device 110 from at least one device in the fourth set of devices 153.

2. When the control device 110 needs to access a device in the second set of devices 133 in the second module 130.

The control device 110 may send an initial control signal 1110 via the first signal line 10, and the first detection circuit 122 in the first module 120 detects the control signal in the first signal line 10, and after determining that the control signal is inconsistent with the target signal, controls the first switch module 121 to disconnect the control device 110 from at least one device in the first group of devices 123.

The control signal of the first signal line 10 is adjusted to 1111 through the counter 124 in the first module 120, the control signal of the first signal line 10 detected by the second detection circuit 132 in the second module 130 is 1111, which is consistent with the target signal, and the second detection circuit 132 controls the second switch module 131 to turn on the connection between the control device 110 and at least one device in the second group of devices 133.

The control signal of the first signal line 10 is adjusted to 0000 through the counter 124 in the first module 120 and the counter 134 in the second module 130, the control signal of the first signal line 10 detected by the third detection circuit 142 in the third module 140 is 0000, and the third detection circuit 142 controls the third switching module 141 to disconnect the control device 110 from at least one device in the third group of devices 143 after the control signal is inconsistent with the target signal.

The control signal of the first signal line 10 is adjusted to 0001 through the counter 124 in the first module 120, the counter 134 in the second module 130, and the counter 144 in the third module 140, the control signal of the first signal line 10 detected by the fourth detection circuit 152 in the fourth module 150 is 0001, and after the control signal is inconsistent with the target signal, the fourth detection circuit 152 controls the fourth switching module 151 to disconnect the control device 110 from at least one device in the fourth set of devices 153.

3. When the control device 110 needs to access a device in the third set of devices 143 in the third module 140.

The control device 110 may send an initial control signal 1101 through the first signal line 10, and the first detection circuit 122 in the first module 120 detects the control signal in the first signal line 10, and after determining that the control signal is inconsistent with the target signal, controls the first switch module 121 to disconnect the control device 110 from at least one device in the first group of devices 123.

The control signal of the first signal line 10 is adjusted to 1110 by the counter 124 in the first module 120, the control signal of the first signal line 10 detected by the second detection circuit 132 in the second module 130 is 1110, which is inconsistent with the target signal, and the second detection circuit 132 controls the second switch module 131 to disconnect the control device 110 from at least one device in the second group of devices 133.

The control signal of the first signal line 10 is adjusted to 1111 through the counter 124 in the first module 120 and the counter 134 in the second module 130, the control signal of the first signal line 10 detected by the third detection circuit 142 in the third module 140 is 1111, which is consistent with the target signal, and the third detection circuit 142 controls the third switching module 141 to turn on the connection between the control device 110 and at least one device in the third set of devices 143.

The control signal of the first signal line 10 is adjusted to 0000 through the counter 124 in the first module 120, the counter 134 in the second module 130 and the counter 144 in the third module 140, the control signal of the first signal line 10 detected by the fourth detection circuit 152 in the fourth module 150 is 0000, and after the control signal is inconsistent with the target signal, the fourth detection circuit 152 controls the fourth switching module 151 to disconnect the control device 110 from at least one device in the fourth set of devices 153.

4. When the control device 110 needs to access a device in the third set of devices 143 in the third module 140.

The control device 110 may send an initial control signal 1100 through the first signal line 10, and the first detection circuit 122 in the first module 120 detects the control signal in the first signal line 10, and after determining that the control signal is inconsistent with the target signal, controls the first switch module 121 to disconnect the control device 110 from at least one device in the first group of devices 123.

The control signal of the first signal line 10 is adjusted to 1101 through the counter 124 in the first module 120, the control signal of the first signal line 10 detected by the second detection circuit 132 in the second module 130 is 1101, which is not consistent with the target signal, and the second detection circuit 132 controls the second switch module 131 to disconnect the control device 110 from at least one device in the second group of devices 133.

The control signal of the first signal line 10 is adjusted to 1110 by the counter 124 in the first module 120 and the counter 134 in the second module 130, the control signal of the first signal line 10 detected by the third detection circuit 142 in the third module 140 is 1110, which is inconsistent with the target signal, and the third detection circuit 142 controls the third switching module 141 to turn on the connection between the control device 110 and at least one device in the third set of devices 143.

The control signal of the first signal line 10 is adjusted to 1111 through the counter 124 in the first module 120, the counter 134 in the second module 130 and the counter 144 in the third module 140, the control signal of the first signal line 10 detected by the fourth detection circuit 152 in the fourth module 150 is 1111, which is consistent with the target signal, and the fourth detection circuit 152 controls the fourth switching module 151 to conduct the connection between the control device 110 and at least one device in the fourth set of devices 153.

Based on the same inventive concept as the system embodiment, an embodiment of the present invention provides a control method for an access device, referring to fig. 4, applied to a control system as shown in fig. 1, the method including:

step 401: the control device 110 transmits a control signal through the first signal line 10.

Then, the first communication module may control the control device to be connected or disconnected with the first group device 123 according to the control signal.

Specifically, the method can be divided into the following two steps:

step 402: the first detection circuit 122 detects a control signal of the first signal line 10, and controls the first switch module 121 according to the detected signal.

Step 403: the first switching module 121 switches on or off the connection between the control device 110 and at least one device in the first group of devices 123 under the control of the first detection circuit 122.

In one possible embodiment, when the control device 110 is connected to a plurality of modules, as shown in fig. 2 of the control system, the counter 124 may adjust the signal in the first signal line 10; the second connection module may then control the connection or disconnection between the control device 110 and the second group of devices 133 according to the control signal adjusted by the counter 124. Specifically, the second detection circuit 132 may detect the control signal adjusted by the counter 124 in the first signal line 10, and control the second switch module 131 according to the detected control signal; the second switching module 131 may turn on or off the connection between the control device 110 and at least one device of the second set of devices 133 under the control of the second detection circuit 132.

In a possible embodiment, the control device 110 can also access the first set of devices 123 or the second set of devices 133 through the second signal line 20.

For example, when the first switch module 121 turns on the connection between the control device 110 and the first group of devices 123 under the control of the first detection circuit 122, the control device 110 accesses the devices in the first group of devices 123 through the second signal line 20 based on the physical addresses of the devices.

For another example, when the first switch module 121 turns on the connection between the control device 110 and the first group of devices 123 under the control of the first detection circuit 122, the control device 110 accesses the devices in the first group of devices 123 through the second signal line 20 based on the access addresses previously assigned to the devices.

For another example, when the second switch module 131 turns on the connection between the control device 110 and the second group of devices 133 under the control of the second detection circuit 132, the control device 110 accesses the devices in the second group of devices 133 through the second signal line 20 based on the physical addresses of the devices.

For another example, when the second switch module 131 turns on the connection between the control device 110 and the second group of devices 133 under the control of the second detection circuit 132, the control device 110 accesses the devices in the second group of devices 133 through the second signal line 20 based on the access addresses previously assigned to the devices.

In a possible embodiment, the first detection circuit 122 may compare the pre-configured target signal with the control signal of the first signal line 10 when detecting the signal of the first signal line 10; after determining that the control signal of the first signal line 10 is consistent with the target signal, the first switch module 121 is controlled to turn on the connection between the control device 110 and the first group of devices 123.

In one possible embodiment, the second detection circuit 132 compares the pre-configured target signal with the control signal adjusted by the counter 124 when detecting the control signal adjusted by the counter 124 in the first signal line 10; after determining that the control signal adjusted by the counter 124 is consistent with the target signal, the second switch module 131 is controlled to turn on the connection between the control device 110 and the second group of devices 133.

Based on the same inventive concept as the method embodiment, an embodiment of the present application further provides a control device, which is used for executing the method shown in the method embodiment, and related features may refer to the method embodiment, which is not described herein again, as shown in fig. 5, for the control device provided in the embodiment of the present application, the control device 500 includes a bus 501, a processing unit 502, and a memory 504, and optionally, may further include a communication interface 503. The processing unit 502, the memory 504 and the communication interface 503 communicate with each other via the bus 501.

The processing unit 502 may be formed by one or more general-purpose processors, such as a Central Processing Unit (CPU), or a combination of a CPU and a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a Programmable Logic Device (PLD), or a combination thereof. The PLD may be a Complex Programmable Logic Device (CPLD), a field-programmable gate array (FPGA), a General Array Logic (GAL), or any combination thereof.

The memory 504 may include volatile memory (volatile memory), such as Random Access Memory (RAM). The memory 504 may also include a non-volatile memory (NVM), such as read-only memory (ROM), flash memory, a Hard Disk Drive (HDD), or a solid-state drive (SSD). The memory 504 may also include a combination of the above categories.

The memory 504 stores executable code, and the processing unit 502 can read the executable code in the memory 504 to implement functions.

In the embodiment of the present application, a plurality of processors in the processing unit 502 may work in coordination to execute the control method for the access device as shown in fig. 4.

Also provided in embodiments of the present application is a computer-readable storage medium having stored therein a software program which, when read and executed by one or more processors, can implement the method shown in the above-described method embodiments.

The present application also provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method shown in the above-described method embodiments.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims (13)

1. A control system, characterized in that the control system comprises a control device and a first module, wherein the first module comprises a first communication module and a first group of devices, the first group of devices comprises at least one device, and the first communication module is connected with the first group of devices; the control equipment is connected with the first communication module through a first signal wire;

the control device is used for transmitting a control signal through the first signal line;

and the first communication module is used for controlling the connection or disconnection between the control equipment and the first group of equipment according to the control signal.

2. The system of claim 1, wherein the control system further comprises a second signal line, the control device being connected to the first connectivity module via the second signal line;

when the first communication module controls the control device to be communicated with the first group of devices according to the control signal, the control device is further configured to access at least one device in the first group of devices through the second signal line.

3. The system of claim 1 or 2, wherein the control system further comprises a second module, the first module further comprising a counter, the second module comprising a second connectivity module and a second set of devices, the second set of devices comprising at least one device; the first signal line is connected with the second communication module through the counter;

the counter is used for adjusting the control signal in the first signal line;

and the second communication module is used for controlling the control equipment and the second group of equipment to be switched on or switched off according to the control signal in the first signal line after the counter is adjusted.

4. The system of claim 2, wherein the control device, when accessing at least one device of the first set of devices via the second signal line, is specifically configured to:

accessing the device through the second signal line based on a physical address of any one of the devices in the first group, wherein different devices in the first group have different physical addresses, and devices with the same physical address exist in the first group of devices and the second group of devices.

5. The system according to any one of claims 1 to 4, wherein the first communication module, when controlling the communication between the control device and the first group of devices according to the control signal, is specifically configured to:

comparing a pre-configured target signal with a control signal of the first signal line;

and after the control signal of the first signal line is determined to be consistent with the target signal, controlling the control device to be conducted with at least one device in the first group of devices.

6. The system according to any one of claims 3 to 5, wherein the second communication module, when controlling the communication between the control device and the second group of devices according to the control signal adjusted by the counter in the first signal line, is specifically configured to:

comparing the pre-configured target signal with the control signal adjusted by the counter;

and after the control signal adjusted by the counter is determined to be consistent with the target signal, controlling the conduction between the control device and at least one device in the second group of devices.

7. A control method for an access device is applied to a control system, the control system comprises a control device and a first module, the first module comprises a first communication module and a first group of devices, the first group of devices comprises at least one device, and the first communication module is connected with the first group of devices; the control equipment is connected with the first communication module through a first signal wire; the method comprises the following steps:

the control equipment transmits a control signal through the first signal line;

and the first communication module controls the control equipment and the first group of equipment to be switched on or switched off according to the control signal.

8. The method of claim 7, wherein the control system further comprises a second signal line, the control device being connected to the first connectivity module via the second signal line; the method further comprises the following steps:

and when the first communication module controls the conduction between the control equipment and the first group of equipment according to the control signal, the control equipment accesses at least one equipment in the first group of equipment through the second signal line.

9. The method of claim 7 or 8, wherein the control system further comprises a second module, the first module further comprises a counter, the second module comprises a second communication module and a second set of devices, the second set of devices comprises at least one device, the first signal line is connected to the second communication module through the counter; the method further comprises the following steps:

the counter adjusts a control signal in the first signal line;

and the second communication module controls the control equipment and the second group of equipment to be connected or disconnected according to the control signal in the first signal line and after the counter is adjusted.

10. The method of claim 9, wherein the controlling device accessing at least one device of the first set of devices via the second signal line, in particular comprising:

the control device accesses the device through the second signal line based on a physical address of any one of the first group of devices, where physical addresses of different devices in the first group of devices are different, and devices having the same physical address exist in the first group of devices and the second group of devices.

11. The method according to any one of claims 7 to 10, wherein the controlling the communication between the control device and the first group of devices by the first communication module according to the control signal specifically comprises:

the first communication module compares a pre-configured target signal with a control signal of the first signal line;

and after the control signal of the first signal line is determined to be consistent with the target signal, controlling the control device to be conducted with at least one device in the first group of devices.

12. The method according to any one of claims 9 to 11, wherein the controlling the conduction between the control device and the second group of devices by the second connection module according to the control signal adjusted by the counter in the first signal line comprises:

the second communication module compares the pre-configured target signal with the control signal adjusted by the counter;

and after the control signal adjusted by the counter is determined to be consistent with the target signal, controlling the conduction between the control device and at least one device in the second group of devices.

13. A control device, characterized in that the control device comprises a processing unit and a memory;

the memory to store computer program instructions;

the processing unit invokes computer program instructions in the memory to perform the method of any of claims 7 to 12.

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