Wireless repeater based on power line carrier

Abstract

The utility model discloses a wireless repeater based on power line carrier, the wireless repeater based on power line carrier is applied to a fire fighting system of an intelligent building, and the intelligent building comprises a wireless terminal, a plurality of fire fighting monitoring devices, a plurality of fire fighting alarm devices and a plurality of wireless repeaters based on power line carrier. The wireless repeater based on the power line carrier comprises a control circuit, a first communication component and a second communication component, the first communication assembly is electrically connected with the control circuit, the second communication assembly comprises a switching assembly, a wireless communication assembly and a power line carrier communication assembly, a first connecting end of the switching assembly is electrically connected with the control circuit, and a second connecting end of the switching assembly is electrically connected with the wireless communication assembly. The third connecting end of the switching assembly is electrically connected with the power line carrier communication assembly. The utility model aims to improve the communication performance of the wireless repeater in the fire fighting system of the intelligent building.

Description

TECHNICAL FIELD

[0001] The utility model relates to the relay of intelligent building fire control system technical field, especially in based on wireless relay of power carrier based on power carrier. BACKGROUND

[0002] In the current intelligent building fire control system, wireless relay plays the role of signal relay and amplification, to expand the coverage of fire monitoring equipment and fire alarm equipment in the fire control system in large building construction through wireless communication network. However, due to the different material and structure design of different buildings, wireless communication signal may attenuate in a certain area or position in the transmission in the building, which may affect the stability of communication between wireless relay and part of fire monitoring equipment and / or fire alarm equipment. SUMMARY

[0003] The main purpose of the utility model is to provide a kind of wireless relay based on power carrier, to improve the communication performance in wireless relay in the fire control system of intelligent building.

[0004] Therefore, the utility model provides a kind of wireless relay based on power carrier, the wireless relay based on power carrier is applied to the fire control system of intelligent building, and the intelligent building includes wireless terminal, multiple fire monitoring equipment, multiple fire alarm equipment and multiple wireless relay based on power carrier, and the wireless relay based on power carrier includes:

[0005] Control circuit;

[0006] First communication component, the first communication component is electrically connected with the control circuit, and is used to be connected with the wireless terminal communication;

[0007] Second communication component, the second communication component includes switching component, wireless communication component and power carrier communication component;The first connecting end of the switching component is electrically connected with the control circuit, the second connecting end of the switching component is electrically connected with the wireless communication component, and the third connecting end of the switching component is electrically connected with the power carrier communication component;

[0008] Wherein, the wireless communication component is used to be connected with at least one of the wireless relay, at least one fire monitoring equipment and at least one fire alarm equipment in wireless communication network;

[0009] The power carrier communication component is used to be connected with at least one of the wireless relay, at least one fire monitoring equipment and at least one fire alarm equipment in power supply line;

[0010] The switching component is configured to switch on a path between the first connection end and the second connection end, or switch on a path between the first connection end and the third connection end, according to a switching control signal received by the controlled end of the switching component.

[0011] Optionally, the power carrier based wireless repeater comprises:

[0012] The triggering component is electrically connected to the controlled end of the switching component, and is configured to output a corresponding switching control signal when triggered by a user.

[0013] The switching control signal comprises a first switching signal and a second switching signal.

[0014] The switching component is configured to switch on a path between the first connection end and the second connection end when the first switching signal is received by the controlled end of the switching component.

[0015] The switching component is further configured to switch on a path between the first connection end and the third connection end when the second switching signal is received by the controlled end of the switching component.

[0016] Optionally, the triggering component comprises at least one of a physical button component, a knob component, and a virtual button component.

[0017] The control circuit is connected to the controlled end of the switching component, and is configured to output a corresponding switching control signal to the controlled end of the switching component.

[0018] Optionally, the power carrier based wireless repeater further comprises:

[0019] The prompting component is electrically connected to the control circuit.

[0020] The wireless communication quality detection component is electrically connected to the control circuit, and is configured to detect a signal strength of the wireless communication network and output a corresponding signal strength detection signal to the control circuit.

[0021] The control circuit is configured to control the prompting component to display the signal strength of the wireless communication network according to the signal strength detection signal.

[0022] The control circuit is further configured to output the signal strength detection signal to the wireless terminal via the first communication component.

[0023] Optionally, the wireless communication quality detection component and the wireless communication component are integrated in a same wireless communication module.

[0024] Optionally, the prompting component comprises at least one of a display component and a sound prompting component.

[0025] Optionally, in the case that the control circuit is connected to the controlled end of the switching component; the control circuit is further configured to output the switching control signal to control the switching component to turn on the path between the first connection end and the third connection end of the switching component in the case that the signal strength detection signal indicates that the signal strength of the wireless communication network is less than the preset strength threshold.

[0026] Optionally, the wireless repeater further comprises:

[0027] a switching circuit, an input end of the switching circuit is electrically connected to the power line, an output end of the switching circuit is electrically connected to the power carrier communication component, and a controlled end of the switching circuit is electrically connected to the control circuit; the switching circuit is configured to be in an open state;

[0028] the control circuit is further configured to control the switching circuit to be in a closed state to turn on the path between the power line and the power carrier communication component in the case that the signal strength detection signal indicates that the signal strength of the wireless communication network is less than the preset strength threshold.

[0029] Optionally, the wireless communication component comprises a LoRa wireless radio frequency component.

[0030] The utility model provides a wireless repeater based on power carrier, including control circuit, first communication subassembly and second communication subassembly, wherein, second communication subassembly includes switching subassembly, wireless communication subassembly and power carrier communication subassembly, wireless communication subassembly is used to be communicated with at least one of wireless repeater, at least one fire control monitoring equipment and at least one fire alarm equipment through wireless communication network, power carrier communication subassembly is used to be communicated with at least one of wireless repeater, at least one fire control monitoring equipment and at least one fire alarm equipment through power supply line, switching subassembly is used to according to the switching control signal that its controlled end received, the passage between its own first connecting end and second connecting end is conducted, or the passage between its own first connecting end and third connecting end is conducted, like this, through above-mentioned setting, the wireless repeater based on power carrier of the application not only can establish communication connection with at least one of other wireless repeater, at least one fire control monitoring equipment and at least one fire alarm equipment through wireless communication network, but also can establish communication connection with above-mentioned equipment through power carrier communication subassembly and power supply line when needing, for example, when the signal quality of the wireless communication network where currently located is poor, thereby effectively improve the communication performance in wireless repeater in the fire control system of intelligent building, and then guarantee the stability of communication between wireless relay and other equipment in fire control system. Meanwhile, since power supply line is used to power wireless repeater and other equipment in fire control system simultaneously, so carrier communication through power supply line also does not need to increase communication wire harness extra. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, below will be to the drawing needed to use in the embodiment or prior art description briefly introduced, obviously, the drawing in the following description only some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, can also obtain other drawings according to the structure shown by these drawings.

[0032] Figure 1 It is circuit module schematic view of the utility model wireless repeater based on power carrier an embodiment;

[0033] Figure 2 It is the fire control system of intelligent building including the utility model wireless repeater based on power carrier a schematic view;

[0034] Figure 3 It is circuit module schematic view of the utility model wireless repeater based on power carrier another embodiment;

[0035] Figure 4 It is circuit module schematic view of the utility model wireless repeater based on power carrier still another embodiment;

[0036] Figure 5 Figure 2 is a circuit module schematic diagram of another embodiment of the wireless repeater based on power carrier of the utility model.

[0037] Explanation of reference numerals:

[0038]

[0039] The utility model discloses the realization, functional characteristics and advantages will be further described with reference to the embodiment, with the attached drawing. DETAILED DESCRIPTION

[0040] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0041] It should be noted that all directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the utility model are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings). If the specific posture changes, the directionality indications will also change accordingly.

[0042] In addition, the description of "first", "second" and the like in the utility model is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art. When the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0043] In the current intelligent building fire fighting system, the wireless repeater plays a role in signal relay and amplification to expand the coverage of fire fighting monitoring devices and fire alarm devices in the fire fighting system in large building construction through wireless communication network. However, due to the different materials and structural design of different buildings, the wireless communication signal may attenuate in a certain area or position during transmission in the building, which may affect the stability of communication between the wireless repeater and part of the fire fighting monitoring devices and / or fire alarm devices.

[0044] The utility model provides a wireless repeater based on power carrier, the wireless repeater based on power carrier is applied to the fire control system of intelligent building, the intelligent building includes wireless terminal, a plurality of fire control monitoring equipment, a plurality of fire control alarm equipment and a plurality of wireless repeater based on power carrier.

[0045] In the embodiment, reference is made to Figure 2 The fire control monitoring equipment includes at least one of smoke monitoring equipment, temperature monitoring equipment, flame monitoring equipment, etc., and the fire control alarm equipment includes at least one of fire control sound alarm equipment, fire control light alarm equipment and fire control sound and light alarm equipment, etc. The wireless terminal can include a server or a data terminal in the building. The wireless terminal can establish a fire control system network with the plurality of fire control monitoring equipment and the plurality of fire control alarm equipment through the plurality of wireless repeaters to realize the acquisition of data fed back by the plurality of fire control monitoring equipment and the plurality of fire control alarm equipment and the issuance of corresponding instructions.

[0046] Reference is made to Figure 1 And Figure 2 In an embodiment, the wireless repeater based on power carrier includes:

[0047] A control circuit 10;

[0048] A first communication component 20, which is electrically connected with the control circuit 10 and is used for communication connection with the wireless terminal;

[0049] A second communication component, which includes a switching component 40, a wireless communication component 30 and a power carrier communication component 50; the first connection end of the switching component 40 is electrically connected with the control circuit 10, the second connection end of the switching component 40 is electrically connected with the wireless communication component 30, and the third connection end of the switching component 40 is electrically connected with the power carrier communication component 50;

[0050] The wireless communication component 30 is used for communication connection with at least one of the wireless repeater, at least one of the fire control monitoring equipment and at least one of the fire control alarm equipment through a wireless communication network;

[0051] The power carrier communication component 50 is used for communication connection with at least one of the wireless repeater, at least one of the fire control monitoring equipment and at least one of the fire control alarm equipment through a power supply line;

[0052] The switching component 40 is used for turning on the passage between the first connection end and the second connection end of itself or turning on the passage between the first connection end and the third connection end of itself according to the switching control signal received by the controlled end.

[0053] In the embodiment, the first communication component 20 is optionally implemented by a wireless communication module, such as a WIFI communication module, a Bluetooth communication module, a 4G / 5G communication module, a local area network communication module, a LoRa wireless radio frequency component, etc. Preferably, the LoRa wireless radio frequency component is used to reduce the power consumption and cost of the first communication component 20. The wireless communication component 30 can also be implemented by the above wireless communication module, and is preferably a LoRa wireless radio frequency component. The wireless communication network is a network corresponding to the type of the wireless communication component 30.

[0054] Optionally, the control circuit 10 can be implemented by a main controller, such as an MCU, a DSP (Digital Signal Process), an FPGA (Field Programmable Gate Array), a PLC, a SOC (System On Chip), etc. The control circuit 10 communicates with the wireless terminal through the first communication component 20 to realize data intercommunication. Similarly, the control circuit 10 also establishes a communication connection with at least one of the wireless repeater, the at least one fire-fighting monitoring device, and the at least one fire-fighting alarm device through the switching circuit and one of the power carrier communication component 50 and the wireless communication component 30 to realize data intercommunication.

[0055] The power carrier communication component 50 can be implemented by a power carrier communication module, which can load a communication signal representing communication information on a power supply line as a transmission medium for transmission.

[0056] Optionally, the maintenance personnel can manually operate the working condition of the switching component 40 in the wireless repeater. In an embodiment, with reference to Figure 3The power carrier based wireless repeater comprises a triggering component 60 electrically connected to the controlled end of the switching component 40; the triggering component 60 is configured to output corresponding switching control signals when triggered by a user; wherein the switching control signals comprise a first switching signal and a second switching signal; the switching component 40 is configured to turn on the path between its first connection end and second connection end when the first switching signal is received at its controlled end; the switching component 40 is further configured to turn on the path between its first connection end and third connection end when the second switching signal is received at its controlled end. In this embodiment, the triggering component 60 can be implemented by at least one of a physical button component, a knob component and a virtual button component. For example, the button component comprises a knob component, which outputs the first switching signal when located at a first position and outputs the second switching signal when located at a second position; a maintenance personnel can manually operate the knob component to be located at the first position or the second position according to the actual wireless network situation demand.

[0057] Optionally, in another embodiment, the control circuit 10 is connected to the controlled end of the switching component 40; the control circuit 10 is configured to output corresponding switching control signals to the controlled end of the switching component 40. In this embodiment, the switching component 40 can also be directly controlled by the control circuit 10 to work. For example, a maintenance personnel finds that the communication quality of the wireless communication network where a certain wireless repeater is located is poor through on-site maintenance or maintenance, and then the maintenance personnel can operate a wireless terminal to make the wireless terminal output corresponding control signals to the control circuit 10 through the first communication component 20, so that the control circuit 10 outputs corresponding switching control signals to the switching component 40, thereby controlling the switching component 40 to turn on the path between the control circuit 10 and the power carrier communication component 50, so that the control circuit 10 establishes a communication connection with at least one of the wireless repeater, at least one of the fire monitoring devices and at least one of the fire alarm devices through the power carrier communication component 50 and the power supply line to interact data. Similarly, the maintenance personnel can control the control circuit 10 in a certain wireless repeater to control the switching component 40 to turn on the path between the control circuit 10 and the wireless communication component 30 through the wireless terminal.

[0058] Therefore, through the above arrangement, the wireless repeater based on the power carrier can not only establish a communication connection with at least one of the other wireless repeaters, the fire-fighting monitoring device and the fire-fighting alarm device through the wireless communication network, but also establish a communication connection with the above-mentioned devices through the power carrier communication assembly 50 and the power supply line when necessary, for example, when the signal quality of the wireless communication network is poor, thereby effectively improving the communication performance of the wireless repeater in the fire-fighting system of the intelligent building, and further ensuring the stability of the communication between the wireless repeater and other devices in the fire-fighting system. At the same time, since the power supply line is used to supply power to the wireless repeater and other devices in the fire-fighting system, the carrier communication through the power supply line does not need to additionally increase the communication wire harness.

[0059] Reference Figure 4 In an embodiment of the present application, the wireless repeater based on the power carrier further comprises:

[0060] a prompt assembly 80, which is electrically connected with the control circuit 10;

[0061] a wireless communication quality detection assembly 70, which is electrically connected with the control circuit 10; the wireless communication quality detection assembly 70 is used to detect the signal strength of the wireless communication network and output a corresponding signal strength detection signal to the control circuit 10;

[0062] the control circuit 10 controls the prompt assembly 80 to display the signal strength of the wireless communication network according to the signal strength detection signal;

[0063] the control circuit 10 is further used to output the signal strength detection signal to the wireless terminal through the first communication assembly 20.

[0064] In the embodiment, the wireless communication quality detection assembly 70 can be implemented by a signal strength (RSSI) detection chip or a signal strength detection circuit. Optionally, in an embodiment, the wireless communication quality detection assembly 70 and the wireless communication assembly 30 are integrated in the same wireless communication module. The prompt assembly 80 can be implemented by a display assembly, for example, a display screen, a digital tube, etc., or can be implemented by a sound prompt assembly 80, for example, a loudspeaker.

[0065] The control circuit 10 can determine the signal strength in the wireless communication network where the current wireless repeater is located, that is, the RSSI value (RSSI, Received Signal Strength Indication), according to the signal strength detection signal, and upload the result to the wireless terminal and control the prompt assembly 80 to prompt, so that the maintenance personnel can know.

[0066] In one case, the maintenance personnel can determine whether to adjust the conducting state of the switching component 40 according to the signal strength in the wireless communication network at the location where the current wireless repeater is located, which is prompted by the prompting component 80 or displayed by the wireless terminal. For example, the maintenance personnel can determine that the current wireless repeater needs to communicate with other wireless repeaters, the fire alarm device and the fire monitoring device through the power carrier communication component 50 when it is determined that the current signal strength is lower than the preset strength threshold, and then operate the triggering component 60 to make the switching component 40 conduct the path between the power carrier communication component 50 and the control circuit 10.

[0067] Alternatively, in another embodiment, the control circuit 10 can also control the switching component 40 to work autonomously according to the signal strength of the current wireless communication network to select the wireless communication component 30 or the power carrier communication component 50 to communicate with the device. In this embodiment, when the control circuit 10 is connected to the controlled end of the switching component 40; the control circuit 10 is also used to determine that the power carrier communication component 50 needs to be used to communicate with the device when it is determined that the signal strength of the wireless communication network is less than the preset strength threshold (preset by the developer and stored in the control circuit 10) according to the signal strength detection signal, and then output the corresponding switching control signal to control the switching component 40 to conduct the path between the first connection end and the third connection end of the switching component 40 itself, so as to conduct the path between the power carrier communication component 50 and the control circuit 10. Similarly, if the control circuit 10 determines that the signal strength of the wireless communication network is greater than or equal to the preset strength threshold according to the signal strength detection signal, the control circuit 10 controls the switching component 40 to conduct the path between the first connection end and the second connection end of the switching component 40 itself, so that the control circuit 10 communicates with the device through the wireless communication component 30.

[0068] It should be understood that in the case of main power failure in the building, such as power failure, because the generator has a starting time, an emergency energy storage module is often used to temporarily maintain power supply to ensure the work of the fire fighting system or other safety systems, and then the generator and other devices are started to provide subsequent long-time power supply. At this time, if the control circuit 10 of some wireless repeaters does not communicate with other wireless repeaters, fire alarm devices and fire monitoring devices through the power carrier communication component 50, the power carrier communication component 50 will continuously consume the stored power in the emergency energy storage module, thereby easily affecting the power supply maintenance time of the emergency energy storage module, and even causing the emergency energy storage module to be insufficient before the generator is started.

[0069] Therefore, with reference to the above Figure 5 In one embodiment of the present application, based on the aboveFigure 4 The wireless relay further comprises:

[0070] A switch circuit 90, an input end of the switch circuit 90 is electrically connected with the power supply line, an output end of the switch circuit 90 is electrically connected with the power carrier communication component 50, and a controlled end of the switch circuit 90 is electrically connected with the control circuit 10; the switch circuit 90 is used for being in an open state;

[0071] The control circuit 10 is further used for controlling the switch circuit 90 to be in a closed state to turn on a path between the power supply line and the power carrier communication component 50 in a case that the signal strength detection signal is determined to be less than a preset strength threshold.

[0072] In the embodiment, the switch circuit 90 can adopt a switch tube such as an IGBT, a power tube and a MOS tube lamp, or adopt a switch device such as a relay and a contactor. Since the switch circuit 90 is in an open state, the power carrier communication component 50 is not connected with the power supply line in a case that the wireless relay does not need to use the power carrier communication component 50. For example, the power carrier communication component 50 is not in a power-on state and thus does not consume power in a case that the control circuit 10 is determined to be greater than the preset strength threshold according to the signal strength detection signal. Similarly, the control circuit 10 is in a closed state to make the power carrier communication component 50 power on and start working in a case that the control circuit 10 is determined to be less than the preset strength threshold. In this way, the endurance time of the emergency energy storage module is effectively ensured and the safety is improved in the intelligent building.

[0073] The above only describes the preferred embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation or direct / indirect application in other related technical fields under the utility model concept of the utility model is included in the patent protection range of the utility model.

Claims

1. A power line carrier based wireless repeater, characterized by, The power carrier based wireless repeater is applied to a fire fighting system of a smart building, the smart building comprising a wireless terminal, a plurality of fire fighting monitoring devices, a plurality of fire fighting alarm devices and a plurality of the power carrier based wireless repeaters, the power carrier based wireless repeater comprising: a control circuit; a first communication component electrically connected with the control circuit and configured to be in communication connection with the wireless terminal; a second communication component comprising a switching component, a wireless communication component and a power carrier communication component; a first connection end of the switching component being electrically connected with the control circuit, a second connection end of the switching component being electrically connected with the wireless communication component, and a third connection end of the switching component being electrically connected with the power carrier communication component; wherein the wireless communication component is configured to be in communication connection with at least one of the wireless repeater, at least one of the fire fighting monitoring devices and at least one of the fire fighting alarm devices via a wireless communication network; the power carrier communication component is configured to be in communication connection with at least one of the wireless repeater, at least one of the fire fighting monitoring devices and at least one of the fire fighting alarm devices via a power supply line; the switching component is configured to turn on a path between the first connection end and the second connection end thereof or turn on a path between the first connection end and the third connection end thereof according to a switching control signal received by a controlled end thereof.

2. The power line carrier based wireless repeater of claim 1, wherein, The power carrier based wireless repeater comprises: a triggering component electrically connected with the controlled end of the switching component; the triggering component is configured to output a corresponding switching control signal when triggered by a user; wherein the switching control signal comprises a first switching signal and a second switching signal; the switching component is configured to turn on a path between the first connection end and the second connection end thereof when the first switching signal is received by the controlled end thereof; the switching component is further configured to turn on a path between the first connection end and the third connection end thereof when the second switching signal is received by the controlled end thereof.

3. The power line carrier based wireless repeater of claim 2, wherein, The triggering component comprises at least one of a physical button component, a knob component and a virtual button component.

4. The power line carrier based wireless repeater of claim 1, wherein, The control circuit is connected with the controlled end of the switching component; the control circuit is configured to output a corresponding switching control signal to the controlled end of the switching component.

5. The power line carrier based wireless repeater of any of claims 1-4, wherein, The power carrier based wireless repeater further comprises: a prompting component electrically connected with the control circuit; a wireless communication quality detection component electrically connected with the control circuit; the wireless communication quality detection component is configured to detect a signal strength of the wireless communication network and output a corresponding signal strength detection signal to the control circuit; the control circuit is configured to control the prompting component to display the signal strength of the wireless communication network according to the signal strength detection signal; the control circuit is further configured to output the signal strength detection signal to the wireless terminal via the first communication component.

6. The power line carrier based wireless repeater of claim 5, wherein, The wireless communication quality detection component and the wireless communication component are integrated in a same wireless communication module.

7. The power line carrier based wireless repeater of claim 5, wherein, The prompting component comprises at least one of a display component and an audible prompting component.

8. The power line carrier based wireless repeater of claim 5, wherein, In a case where the control circuit is connected to a controlled end of the switching component; the control circuit is further configured to, in a case where it is determined according to the signal strength detection signal that the signal strength of the wireless communication network is less than a preset strength threshold, output a corresponding switching control signal to control the switching component to turn on a path between the first connection end and the third connection end of the switching component.

9. The power line carrier based wireless repeater of claim 8, wherein, The wireless repeater further comprises: A switch circuit, an input end of the switch circuit is electrically connected with the power supply line, an output end of the switch circuit is electrically connected with the power carrier communication component, and a controlled end of the switch circuit is electrically connected with the control circuit; the switch circuit is used to be in an open state; The control circuit is further configured to, in a case where it is determined according to the signal strength detection signal that the signal strength of the wireless communication network is less than a preset strength threshold, control the switch circuit to be in a closed state to turn on a path between the power supply line and the power carrier communication component.

10. The power line carrier based wireless repeater of any of claims 1-4, wherein, The wireless communication component comprises a LoRa wireless radio frequency component.

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