CN116455691A - Communication device and system - Google Patents

Abstract

The embodiment of the application discloses communication device, the device includes first end, second end and third end, and first end includes low pass filter, first end is used for connecting detection equipment, the data that detection equipment gathered passes through low pass filter transmits to communication bus. The second end and the third end are used for connecting the communication bus. Since the first terminal includes a low-pass filter, other data requiring high-speed transmission cannot reach the first terminal, thereby avoiding leakage of other data requiring high-speed transmission to the first terminal. In the scheme, a group of communication buses are not required to be additionally arranged, the communication device is directly installed on the communication buses, the data needing high-speed transmission can be prevented from being transmitted to a branch where equipment for collecting the data capable of low-speed transmission is located, and the operation of a user is simple.

Description

Communication device and system

Technical Field

The present disclosure relates to the field of communications, and in particular, to a communication device and system.

Background

In some scenarios, there is a need for both high speed and low speed data transmission. As can be appreciated with reference to fig. 1, fig. 1 is a schematic diagram of an exemplary application scenario. In the scenario shown in fig. 1, an RS485 bus is used to communicate between a plurality of detection devices and a controller in a fire protection system. The rate required to send the data acquired by the detection device to the controller need not be too high. In some scenes, in order to obtain the actual situation of the area where the acquisition device is located in real time, an image capturing device may be installed in the area where the detection device is located, an image corresponding to the area is captured by the image capturing device and sent to the controller, and a higher rate is required for sending the data captured by the image capturing device to the controller.

Currently, if both the data that can be transmitted at a low speed and the data that needs to be transmitted at a high speed are required to be transmitted, a set of communication buses needs to be added on the basis of the communication buses shown in fig. 1 to transmit the data that needs to be transmitted at a high speed. And the RS485 bus adopts copper core polyvinyl chloride insulating twisted type flexible electric wire (RVS) twisted pair for connection to transmit power and signals. Thus, the addition of a new set of communication buses means that the overall deployment of the original RVS twisted pair needs to be changed: another group of RVS twisted pairs needs to be newly deployed, and the operation is complex.

Therefore, a solution is urgently needed to solve the above-mentioned problems.

Disclosure of Invention

The embodiment of the application provides a communication device, which can transmit data which can be transmitted at a low speed and data which need to be transmitted at a high speed under the condition that the integral deployment of the original RVS twisted pair is not required to be changed, and is simple to operate.

In a first aspect, an embodiment of the present application provides a communication apparatus, in one example, the apparatus includes a first end, a second end, and a third end, where the first end includes a low-pass filter, the first end is used to connect to a detection device, and data collected by the detection device is transmitted to a communication bus through the low-pass filter. The second end and the third end are used for connecting the communication bus. Since the first terminal includes a low-pass filter, other data requiring high-speed transmission cannot reach the first terminal, thereby avoiding leakage of other data requiring high-speed transmission to the first terminal. In the scheme, a group of communication buses are not required to be additionally arranged, the communication device is directly installed on the communication buses, the data needing high-speed transmission can be prevented from being transmitted to a branch where equipment for collecting the data capable of low-speed transmission is located, and the operation of a user is simple.

In one possible implementation, in order to enable the high frequency signal and the low frequency signal to be transmitted over the same communication bus, the communication device may further comprise a fourth terminal comprising a high speed transmission module. In one example, the data collected by the detection device connected to the fourth terminal may be transmitted to a communication bus through the high-speed transmission module, so as to realize high-frequency data transmission through the communication bus.

In one possible implementation, the second end of the communication device includes a switch and a low pass filter, the switch and the low pass filter being connected in parallel. If the fourth terminal of the communication device is connected to the detecting device, when the switch included in the second terminal is turned off, the data collected by the fourth terminal connection detecting device cannot be transmitted to other nodes on the bus through the second terminal of the communication device.

In one possible implementation, the third terminal of the communication device includes a switch and a low pass filter, the switch and the low pass filter being connected in parallel. If the fourth terminal of the communication device is connected to the detecting device, when the switch included in the third terminal is turned off, the data collected by the fourth terminal connection detecting device cannot be transmitted to other nodes on the bus through the third terminal of the communication device.

In one possible implementation, the second and third terminals of the communication device each include a switch and a low pass filter in parallel. For this case, the transmission path of the data collected by the fourth terminal connection detection device may be controlled by controlling the switching states of the second terminal and the third terminal.

In one possible implementation, the high-speed transmission module included at the fourth end of the communication device may be a point-to-point high-speed transmission module, so as to implement point-to-point high-speed transmission.

In one possible implementation, the high-speed transmission module may include a switch and a high-speed transceiver module, wherein when the switch is open, transmission of other high-frequency signals to the fourth terminal may be avoided, and when the switch is closed, the fourth terminal may be used to transmit (e.g., send or receive) high-frequency data.

In one possible implementation, consider that the broadband power line carrier communication (power line communication, PLC) technology is a point-to-point high speed transmission technology. Thus, in one example, the high speed transceiver module may be a transceiver module corresponding to wideband PLC technology, in which case the point-to-point high speed transmission module may include a switch and a wideband PLC module.

In one possible implementation, it is contemplated that the 10BASE-T1L technology is a point-to-point high speed transmission technology. Thus, the high-speed transceiver module may be a transceiver module corresponding to 10BASE-T1L technology. For this case, the point-to-point high speed transmission module may include a switch and a 10BASE-T1L module.

In one possible implementation, it is contemplated that the communication bus used by the deployment system in the present campus may be an RS485 bus, and thus, the communication bus referred to herein may be an RS485 bus, thereby enabling the above communication device to be used in the campus.

In a second aspect, embodiments of the present application provide a communication system, which may include a communication bus, at least one or more of the communication devices of the first aspect or any of the first aspect, and a probe apparatus connected to the communication device. By utilizing the communication system, high-frequency data and low-frequency data can be transmitted, the data which needs to be transmitted at high speed can be prevented from being transmitted to a branch where equipment for collecting the data which can be transmitted at low speed is located, and the user operation is simple.

In one possible implementation, a controller is connected to one end of the communication bus, and the controller may receive data sent by other probe devices through the communication bus. The data sent by the other detecting devices can comprise high-frequency data and low-frequency data, so that the controller can receive the high-frequency data through the communication bus and the low-frequency data through the communication bus.

In a possible implementation, if the second or third terminal of the communication device comprised by the communication system comprises a switch, the communication system further comprises control means connected to the communication bus for controlling the state of the switch in the communication device, thereby enabling a specific point-to-point or point-to-multipoint communication.

In a possible implementation manner, the communication system includes a first communication device, and a fourth terminal of the first communication device is connected to a first detection device, where the first detection device is used for collecting data that needs to be transmitted at a high speed. The data acquired by the first detection equipment is transmitted to the target equipment through a first path. In this case, the switches included in the first path are all in a closed state, so that the data collected by the first detection device is transmitted to the target device through the first path.

In a possible implementation manner, the target device may be a controller connected to one end of the communication bus, or may be a device connected to a fourth end of the second communication apparatus on the communication bus.

In one possible implementation manner, when the target device is a controller, the data collected by the first detection device is sent to the controller through the second end of the first communication device. In this case, the switch on the second end of the first communication means is closed, so that the data collected by the first detection device is sent to the controller via the second end of the first communication means. At this time, the switch included in the third terminal of the first communication device may be in an off state, so as to avoid data sent by the first probe apparatus from being transmitted to other nodes of the communication bus through the third terminal of the first communication device. Thereby enabling a point-to-point high speed transmission from the first probe device to the target device.

In one possible implementation manner, when the target device is a device connected to the fourth terminal of the second communication device, the data collected by the first detection device is sent to the device connected to the fourth terminal of the second communication device through the third terminal of the first communication device. In this case, the switch at the third end of the first communication device is closed, so that the data acquired by the first detection apparatus is transmitted to the apparatus connected to the fourth end of the second communication device through the third end of the first communication device. At this time, the switch included in the second end of the first communication device may be in an off state, so as to avoid the data sent by the first detection device from being transmitted to other nodes of the communication bus through the second end of the first communication device, thereby implementing point-to-point high-speed transmission from the first detection device to the target device.

In one possible implementation, if the first path further includes at least one third communication device, and the second end and/or the third end of the third communication device includes a switch, then for the at least one third communication device, if the second end thereof on the first path includes a switch, then the switch of the second end thereof on the first path is in a closed state. Similarly, for the at least one third communication device, if the third terminal thereof on the first path includes a switch, the switch of the third terminal of the at least one third communication device on the first path is in a closed state.

In one possible implementation, the communication bus is an RS485 bus.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic illustration of an exemplary application scenario;

fig. 2 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of another communication device according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of another communication device according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a communication system according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of another communication system according to an embodiment of the present application.

Detailed Description

The embodiment of the application provides a communication device, which can transmit data which can be transmitted at a low speed and data which need to be transmitted at a high speed under the condition that the integral deployment of the original RVS twisted pair is not required to be changed, and is simple to operate.

The inventor of the present application found that if the same set of communication buses is used to transmit both data that can be transmitted at a low speed and data that needs to be transmitted at a high speed, the data that needs to be transmitted at a high speed may leak to a branch where a device that collects the data that can be transmitted at a low speed is located, thereby causing a large signal loss and affecting the normal transmission of the data that needs to be transmitted at a high speed. Therefore, if both the foregoing data that can be transmitted at a low speed and the data that needs to be transmitted at a high speed need to be transmitted, two sets of communication buses may be employed, one set of communication buses being used for transmitting the data that can be transmitted at a low speed and the other set of communication buses being used for transmitting the data that needs to be transmitted at a high speed. However, adding a new set of communication buses is complex to operate.

In view of this, embodiments of the present application provide a communication device, and the communication device will be described below with reference to the accompanying drawings.

Referring to fig. 2, the structure of a communication device according to an embodiment of the present application is shown.

The communication device shown in fig. 2 includes a first end 210, a second end 220, and a third end 230.

The first end 210 is configured to connect to a detecting device, the first end 210 includes a low-pass filter 211, data collected by the detecting device connected to the first end 210 is transmitted to a communication bus through the low-pass filter 211, a requirement of the data collected by the detecting device connected to the first end 210 on a transmission rate is not very high, and the data collected by the detecting device connected to the first end 210 belongs to a low-frequency signal. Since the low frequency signal can pass through the low pass filter and the high frequency signal cannot pass through the low pass filter, the data collected by the detection device connected to the first end 210 can be transmitted to the communication bus through the low pass filter 211. In one example, the detection device to which the first end 210 is connected may be, for example, a smoke detector, a temperature detector, a manual alarm button, an access card reader, or the like.

The structure of the low-pass filter 211 is not specifically limited in this embodiment, and in one example, the low-pass filter may include a capacitor and/or an inductor.

The second end 220 and the third end 230 are adapted to be connected to a communication bus.

In one example, consider that the communication bus used by the deployment system on the present campus may be an RS485 bus, and thus, the communication bus referred to herein may be an RS485 bus, thereby enabling the above communication device to be applied on the campus.

Since the first terminal 210 includes the low-pass filter 211, even if a high-frequency signal (corresponding to data requiring high-speed transmission) is transmitted in addition to a low-frequency signal on the communication bus, the high-frequency signal cannot reach the first terminal 210, so that the high-frequency signal is prevented from leaking to the first terminal 210 and affecting normal transmission of the high-frequency signal.

In one example, in order to enable the high-frequency signal and the low-frequency signal to be transmitted through the same communication bus, the embodiment of the present application further provides a communication device, which can be understood with reference to fig. 3, and fig. 3 is a schematic structural diagram of yet another communication device provided in the embodiment of the present application.

The communication device shown in fig. 3 is further provided with a fourth terminal 240 based on the communication device shown in fig. 2, and the fourth terminal 240 includes a high-speed transmission module 241. In one example, the fourth terminal 240 is used to connect to a probe device, and data collected by the probe device connected to the fourth terminal belongs to high-frequency data when transmitted through a communication bus. As an example, the fourth end 240 may be connected to a camera. In yet another example, the fourth terminal may be used to connect to a monitoring device to receive data collected by other detection devices.

By using the communication device shown in fig. 3, both high frequency data and low frequency data can be transmitted without changing the overall arrangement of the original communication bus (without adding a new communication bus). In one example, for the scenario shown in fig. 1, the communication apparatus shown in fig. 2 may be applied at a node where the high frequency data acquisition device is not required to be added, at a node where the high frequency data acquisition device is required to be added, and at a node corresponding to the data acquired by other probe devices.

For the communication device shown in fig. 3, when the fourth terminal 240 is connected to the probe device, the data collected by the probe device may be transmitted to other nodes on the communication bus through the second terminal of the communication device, or may be transmitted to other nodes on the communication device through the third terminal of the communication device, so as to implement high-speed point-to-multipoint communication.

In one example, the high-speed transmission module 241 may include a switch and a high-speed transceiver module, wherein when the switch is opened, other high-frequency signals may be prevented from being transmitted to the fourth terminal 240, and when the switch is closed, the fourth terminal 240 may be used to transmit (e.g., send or receive) high-frequency data.

In one example, the communication bus bandwidth requirements are relatively high in view of high speed point-to-multipoint communications. The embodiment of the application also provides a communication device, which can realize point-to-point high-speed transmission when the bandwidth of a communication bus is insufficient to support the point-to-multipoint high-speed transmission. Next, the communication device will be described with reference to the drawings.

Referring to fig. 4, fig. 4 is a schematic structural diagram of another communication device according to an embodiment of the present application.

The communication device shown in fig. 4 differs from the communication device shown in fig. 3 in that the second end and/or the third end.

In one example, the second end 220 of the communication device includes a switch k1 and a low pass filter f1, the switch k1 and the low pass filter f1 being connected in parallel. It will be appreciated that if the fourth terminal 240 of the communication device is connected to the detecting device, when the switch k1 is turned off, the data collected by the fourth terminal 240 connected to the detecting device cannot be transmitted to other nodes on the bus through the second terminal 220 of the communication device.

In one example, the third terminal 230 of the communication device includes a switch k2 and a low pass filter f2, the switch k2 and the low pass filter f2 being connected in parallel. It will be appreciated that if the fourth terminal 240 of the communication device is connected to the detecting device, the data collected by the fourth terminal 240 connected to the detecting device cannot be transmitted to other nodes on the bus through the third terminal 230 of the communication device when the switch k2 is turned off.

In another example, the second end 220 of the communication device includes a switch k1 and a low pass filter f1, and the third end 230 of the communication device includes a switch k2 and a low pass filter f2. For this case, the fourth terminal 240 may be controlled to connect the transmission path of the data collected by the probe device by controlling the states of the switches k1 and k 2.

It should be noted that, although in fig. 4, the second terminal 220 of the communication device includes the switch k1 and the low-pass filter f1, and the third terminal 230 of the communication device includes the switch k2 and the low-pass filter f2. However, fig. 4 is shown for ease of understanding only, and is not to be construed as limiting the embodiments of the present application. In one example, the second end 220 of the communication device may include a switch k1 and a low pass filter f1, while the third end 230 of the communication device does not include a switch k2 and a low pass filter f2; in yet another example, the second end 220 of the communication device may not include the switch k1 and the low pass filter f1, while the third end 230 of the communication device includes the switch k2 and the low pass filter f2.

In one example, the high speed transmission module 241 shown in fig. 4 may be a point-to-point high speed transmission module, thereby enabling point-to-point high speed transmission.

As previously described, the high-speed transmission module 241 may include a switch and a high-speed transceiver module, wherein when the switch is opened, other high-frequency signals may be prevented from being transmitted to the fourth terminal 240, and when the switch is closed, the fourth terminal 240 may be used to transmit (e.g., send or receive) high-frequency data.

In the embodiments of the present application, it is contemplated that both wideband PLC technology and 10BASE-T1L technology are point-to-point high speed transmission technologies. Thus, in one example, the high speed transceiver module may be a transceiver module corresponding to wideband PLC technology, in which case the point-to-point high speed transmission module may include a switch and a wideband PLC module. In yet another example, the high-speed transceiver module may be a transceiver module corresponding to 10BASE-T1L technology. For this case, the point-to-point high speed transmission module may include a switch and a 10BASE-T1L module.

Based on the communication device provided in the above embodiment, the embodiment of the application also provides a communication system. The communication system may include a communication bus, a communication device provided by at least one of the above embodiments, and a probe apparatus connected to the communication device.

In one example, the communication bus referred to herein may be an RS485 bus.

It will be appreciated that when the system comprises the communication device shown in fig. 3 or fig. 4, the high frequency signal and the low frequency signal can be caused to be transmitted over the same communication bus. When the system comprises the communication device shown in fig. 2, the transmission of the high-frequency signal to the branch where the detection equipment corresponding to the acquired low-frequency data is located can be avoided when the high-frequency signal is transmitted on the bus.

In one example, a controller is connected to one end of the communication bus, and the controller may receive data sent by other probe devices through the communication bus. In one example, the controller may run on a terminal or server of the monitoring room.

As can be seen from the above, if the communication system includes the communication device shown in fig. 3 or fig. 4, the communication system further includes a control device connected to the communication bus for controlling the state of the switch in the communication device, so as to implement a specific point-to-point or point-to-multipoint communication. The control device is not particularly limited, and in one example, the control device may be a micro control unit (microcontroller unit, MCU), and the control device may receive an instruction of a controller, and then control a state of a switch in the communication device based on the instruction of the controller.

Regarding the state of the switch in the communication device, it should be noted that:

in some embodiments, the communication system includes a first communication device, which is the communication device shown in fig. 3 or fig. 4. The fourth end of the first communication device is connected with a first detection device, and the first detection device is used for collecting data needing high-speed transmission, for example, the first detection device is a camera and is used for shooting images. The data acquired by the first detection equipment is transmitted to the target equipment through a first path. The target device mentioned here may be a controller connected to one end of the communication bus or may be a device connected to a fourth end of the second communication apparatus on the communication bus. For this case, the states of the switches included in the first path are all closed, so that the data collected by the first detection device is transmitted to the target device through the first path. Wherein the switch on the first path comprises at least a switch comprised by a fourth terminal of the first communication device.

In some embodiments, if only the switch included at the fourth end of the first communication device is included on the first path, the switch included at the fourth end of the first communication device may be in a closed state. For example, the target device is a controller, and the first communication apparatus is a communication apparatus shown in fig. 3.

In some embodiments, when the target device is a controller, the data collected by the first detection device is sent to the controller through the second end of the first communication device. In other words, the first communication device communicates with the controller at a high speed via its second end. At this time, the second end of the first communication device is located on the first path. In this case, the switch on the second end of the first communication means is closed, so that the data collected by the first detection device is sent to the controller via the second end of the first communication means. In one example, the switch included in the third terminal of the first communication device is in an off state, so that data sent by the first probe device is prevented from being transmitted to other nodes of the communication bus through the third terminal of the first communication device, and therefore point-to-point high-speed transmission from the first probe device to the target device is achieved.

In some embodiments, when the target device is a device connected to the fourth end of the second communication device, the data collected by the first detection device is sent to the device connected to the fourth end of the second communication device through the third end of the first communication device. In other words, the first communication device performs high-speed communication through the apparatus of which the third terminal is connected to the fourth terminal of the second communication device. At this time, the third terminal of the first communication device is located on the first path. In this case, the switch at the third end of the first communication device is closed, so that the data acquired by the first detection apparatus is transmitted to the apparatus connected to the fourth end of the second communication device through the third end of the first communication device. In one example, the switch included at the second end of the first communication device is in an off state, so that data sent by the first detection device is prevented from being transmitted to other nodes of the communication bus through the second end of the first communication device, and therefore point-to-point high-speed transmission from the first detection device to the target device is achieved.

In other embodiments, if the first path further includes at least one third communication device and the second and/or third ends of the third communication device include a switch, then for the at least one third communication device, if the second end thereof on the first path includes a switch, then the switch of the second end thereof on the first path is in a closed state. Similarly, for the at least one third communication device, if the third terminal thereof on the first path includes a switch, the switch of the third terminal of the at least one third communication device on the first path is in a closed state.

With respect to the above mentioned communication system, the description will now be made with reference to the accompanying drawings.

Referring to fig. 5, a schematic structural diagram of a communication system according to an embodiment of the present application is provided.

As shown in fig. 5, the communication system includes a communication bus, a controller 501 connected to one end of the communication bus, a communication device 502, a communication device 503, a communication device 504, a communication device 505, a communication device 506, and a probe apparatus connected to each communication device. In the scenario shown in fig. 5: the detection device connected with the communication apparatus 502 comprises a detection device 1 connected with a first end of the communication apparatus 502 and a camera connected with a fourth end of the communication apparatus 502; the detecting device connected with the communication means 503 comprises a detecting device 2 connected with a first end of the communication means 503 and a camera connected with a fourth end of the communication means 503; the detection device connected to the communication means 504 comprises a detection device 3 connected to a first end of the communication means 504; the detection device connected to the communication apparatus 505 comprises a detection device 4 connected to a first end of the communication apparatus 505, and a monitor connected to a fourth end of the communication apparatus 505; the probing apparatus coupled to the communication device 506 includes a probing apparatus n coupled to a first end of the communication device 506.

In one example, the aforementioned first communication device may correspond to communication device 502 or 503 shown in fig. 5, and the second communication device may correspond to communication device 505 shown in fig. 5.

When the first communication device is the communication device 502, the second communication device is the communication device 505, and the target apparatus is the apparatus to which the fourth terminal of the second communication device is connected, the third communication device includes: a communication device 503 and a communication device 504.

When the first communication device is the communication device 503, the second communication device is the communication device 505, and the target apparatus is an apparatus to which the fourth terminal of the second communication device is connected, the third communication device includes: a communication device 504.

When the first communication apparatus is the communication apparatus 503 and the target device is the controller 501, the third communication apparatus includes: a communication device 502.

In one example, when the switch k3 is closed in the communication device 502 (first communication device), data captured by a camera connected to the fourth terminal of the communication device 502 may be transmitted to the controller 501 (target apparatus). At this time, when the switch k9 at the 4 th terminal of the communication device 505 is closed at the same time, data captured by the camera connected to the fourth terminal of the communication device 502 may be transmitted to the communication device 505 (second communication device), thereby realizing the point-to-multipoint communication. Of course, the switch k9 may be controlled to be turned off.

In still another example, when the switch k6 is closed in the communication device 503 (first communication device), data captured by a camera connected to the fourth terminal of the communication device 503 may be transmitted to the controller 501 (target apparatus). At this time, when the switch k9 at the 4 th terminal of the communication device 505 is closed at the same time, data captured by the camera connected to the fourth terminal of the communication device 503 may be transmitted to the communication device 505 (second communication device), thereby realizing the point-to-multipoint communication. Of course, the switch k9 may be controlled to be turned off.

In the scenario shown in fig. 5, the data collected by the detection device connected to the first end of each communication apparatus may be transmitted to the communication bus, regardless of the switching state included in each communication apparatus.

The communication system shown in fig. 5 can be applied in a scenario where the bandwidth of the communication bus is sufficient, and can implement point-to-multipoint high-speed transmission.

Compared with fig. 1, fig. 5 only needs to install the communication device provided in the embodiment of the present application on a communication bus. Specifically, the communication apparatus shown in fig. 3 may be installed for a node (for example, a node corresponding to the communication apparatuses 502, 503, 505) having a high-speed transmission demand, and the communication apparatus shown in fig. 2 may be installed for a node (for example, a node corresponding to the communication apparatuses 504, 506) having no high-speed transmission demand. Therefore, the transmission of high-frequency signals and the transmission of low-frequency signals can be realized on the basis of not adding a new communication bus.

Referring to fig. 6, a schematic structural diagram of still another communication system according to an embodiment of the present application is provided.

As shown in fig. 6, the communication system includes a communication bus, a controller 601 connected to one end of the communication bus, a communication device 602, a communication device 603, a communication device 604, a communication device 605, a communication device 606, and a probe apparatus connected to each communication device. In the scenario shown in fig. 6: the detecting device connected with the communication device 602 comprises a detecting device 1 connected with a first end of the communication device 602 and a camera connected with a fourth end of the communication device 602; the detection device connected to the communication means 603 comprises a detection device 2 connected to a first end of the communication means 603, and a camera connected to a fourth end of the communication means 603; the probing apparatus coupled to the communication device 604 comprises a probing apparatus 3 coupled to a first end of the communication device 604; the detection device connected to the communication device 605 includes a detection device 4 connected to a first end of the communication device 605, and a monitor connected to a fourth end of the communication device 605; the probing apparatus coupled to the communication device 606 includes a probing apparatus n coupled to a first end of the communication device 606.

In one example, the aforementioned first communication device may correspond to communication device 602 or 603 shown in fig. 6, and the second communication device may correspond to communication device 605 shown in fig. 6.

When the first communication apparatus is the communication apparatus 602, the second communication apparatus is the communication apparatus 605, and the target device is a device connected to the fourth terminal of the second communication apparatus, the third communication apparatus includes: a communication device 603 and a communication device 604.

When the first communication apparatus is the communication apparatus 603, the second communication apparatus is the communication apparatus 605, and the target device is a device connected to the fourth terminal of the second communication apparatus, the third communication apparatus includes: communication device 604.

When the first communication apparatus is the communication apparatus 603 and the target device is the controller 601, the third communication apparatus includes: communication device 602.

If the first communication device is the communication device 602 and the target communication device is the controller, the second end of the communication device 602 is the end including the switch k 1; when the first communication device is 602 and the target communication device is a monitor connected to the fourth terminal of the communication device 605 (the second communication device), the third terminal of the communication device 602 is the terminal including the switch k 2.

If the fourth terminal of the communication device 602 is connected to a monitor, the communication device 602 may be a second communication device in one example. At this time, if the first communication device is the communication device 603, the communication device 603 may perform high-speed communication with the controller 601 using one end including the switch k4, or may perform high-speed communication with a monitor connected to the fourth end of the communication device 602 using one end including the switch k 4. At this time, the second terminal and the third terminal of the communication device 603 are both terminals including the switch k 4.

In one example, for the communication apparatus 602 (first communication apparatus), if the switches k3 and k1 (switches included in the second terminal of the communication apparatus 602) are closed, data captured by a camera connected to the fourth terminal of the communication apparatus 602 may be transmitted to the controller 601 (target device). At this time, when the switch k2 (the switch included in the third terminal of the communication device 602) is turned off, point-to-point communication between the camera connected to the fourth terminal of the communication device 602 and the controller 601 can be realized.

In one example, for the communication apparatus 602 (first communication apparatus), if data captured by a camera connected to the fourth terminal of the communication apparatus 602 is to be transmitted to a monitor (target device) connected to the fourth terminal of the communication apparatus 605 (second communication apparatus), the first path (fourth terminal of the communication apparatus 602→the third terminal of the communication apparatus 602→the second terminal of the communication apparatus 603→the third terminal of the communication apparatus 603→the second terminal of the communication apparatus 604→the third terminal of the communication apparatus 604→the second terminal of the communication apparatus 605→a switch included in the third terminal of the communication apparatus 605), k3, k2 (a switch included in the third terminal of the communication apparatus 602), k4, k5, k7, k9 may be all closed. At this time, when the switch k1 (the switch included in the second terminal of the communication device 602) is turned off, point-to-point communication between the camera connected to the fourth terminal of the communication device 602 and the monitor connected to the fourth terminal of the communication device 605 can be realized. Of course, when the switch k1 is closed, data captured by the camera connected to the fourth terminal of the communication device 602 may be transmitted to the controller 601, thereby realizing the point-to-multipoint communication.

In the scenario shown in fig. 6, data collected by the detection device connected to the first end of each communication apparatus may be transmitted to the communication bus, regardless of the switching state included in each communication apparatus.

The communication system shown in fig. 6 can be applied in a scenario where the bandwidth of the communication bus is sufficient to realize point-to-multipoint high-speed transmission. And can also be applied in the case that the communication bus bandwidth is insufficient to support point-to-multipoint high-speed transmission to realize the point-to-point high-speed transmission.

Compared with fig. 1, fig. 6 only needs to install the communication device provided in the embodiment of the present application on a communication bus. Specifically, the communication device shown in fig. 4 may be installed for a node (for example, a node corresponding to the communication devices 602, 603, 605) having a high-speed transmission demand, and the communication device shown in fig. 2 may be installed for a node (for example, a node corresponding to the communication devices 604, 606) having no high-speed transmission demand. Therefore, the transmission of high-frequency signals and the transmission of low-frequency signals can be realized on the basis of not adding a new communication bus.

It should be noted that fig. 5 and fig. 6 are only shown for the convenience of understanding the communication system provided in the embodiments of the present application, and are not limited to the embodiments of the present application. In one example, the communication system may further include both the communication device shown in fig. 2, the communication device shown in fig. 3, and the communication device shown in fig. 4, which are not further illustrated herein. In still another example, although in fig. 6, the device connected to the fourth terminal of the communication apparatus 602 communicates with the controller at a high speed through one terminal including the switch k1, in practice, the device connected to the fourth terminal of the communication apparatus 602 may also communicate with the controller at a high speed through one terminal including the switch k 2. For this case, in the scenario shown in fig. 6, for the communication device 602, the second terminal thereof is the terminal including the switch k2, and the third terminal thereof is the terminal including the switch k 1. Similarly, for the communication device 603, the second terminal is a terminal including the switch k5, the third terminal is a terminal including the switch k4, and so on, which are not illustrated herein.

The terms "first," "second," "third," "fourth" and the like in the description and in the claims of this application and in the above-described figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments described herein may be implemented in other sequences than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.

In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, e.g., the division of units is merely a logical service division, and there may be additional divisions in actual implementation, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each service unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software business units.

The integrated units, if implemented in the form of software business units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods of the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

Those skilled in the art will appreciate that in one or more of the examples described above, the services described herein may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the services may be stored in a computer-readable medium or transmitted as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

The objects, technical solutions and advantageous effects of the present invention have been described in further detail in the above embodiments, and it should be understood that the above are only embodiments of the present invention.

The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims (16)

1. A communication device, the device comprising: a first end, a second end, and a third end;

the first end comprises a low-pass filter and is used for being connected with detection equipment, and data acquired by the detection equipment are transmitted to a communication bus through the low-pass filter;

the second end and the third end are used for connecting the communication bus.

2. The communication device of claim 1, further comprising a fourth terminal comprising a high-speed transmission module.

3. The apparatus of claim 2, wherein the second terminal comprises a switch and a low pass filter in parallel, and/or the third terminal comprises a switch and a low pass filter in parallel.

4. A method according to claim 2 or 3, wherein the high speed transmission module is a point-to-point high speed transmission module.

5. The apparatus of claim 4, wherein the point-to-point high speed transmission module comprises:

the switch and the broadband power line carrier communication PLC module.

6. The apparatus of claim 4, wherein the point-to-point high speed transmission module comprises:

a switch and a 10BASE-T1L module.

7. The apparatus of any of claims 1-6, wherein the communication bus is an RS485 bus.

8. A communication system, the system comprising:

communication bus, at least one communication device according to any of claims 1-7 and a probing apparatus connected to the communication device.

9. The system of claim 8, wherein the communication system further comprises a controller coupled to one end of the communication bus.

10. A system according to claim 8 or 9, characterized in that the system further comprises control means for controlling the state of a switch comprised in the communication means.

11. The system of any of claims 8-10, comprising a first probe device coupled to the fourth end of the first communication device, the data collected by the first probe device being transmitted to the target device via a first path, the switches included on the first path being closed, the switches included on the first path comprising: the fourth terminal of the first communication device comprises a switch.

12. The system of claim 11, wherein the target device comprises: and a controller or a device connected to the fourth terminal of the second communication device.

13. The system of claim 12, wherein when the target device is the controller, the first path includes a second end of the first communication device, the second end of the first communication device includes a switch that is closed, and a third end of the first communication device includes a switch that is open.

14. The system of claim 12, wherein when the target device is a device to which the fourth terminal of the second communication device is connected, the first path includes a third terminal of the first communication device, the third terminal of the first communication device includes a switch that is closed, and the second terminal of the first communication device includes a switch that is open.

15. The system of claim 11, wherein the switch included on the first path further comprises:

the second end of the at least one third communication device on the first path comprises a switch and/or the third end of the at least one third communication device comprises a switch.

16. The system of any of claims 8-15, wherein the communication bus is an RS485 bus.