CN210324546U - Wireless collector and control system comprising same - Google Patents
Wireless collector and control system comprising same Download PDFInfo
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- CN210324546U CN210324546U CN201920606589.8U CN201920606589U CN210324546U CN 210324546 U CN210324546 U CN 210324546U CN 201920606589 U CN201920606589 U CN 201920606589U CN 210324546 U CN210324546 U CN 210324546U
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Abstract
The utility model relates to the field of lighting control of highway tunnels, and discloses a wireless collector and a control system comprising the same, so that the state collection of field equipment is conveniently and effectively realized, and the implementation cost is low; the utility model discloses a wireless collector, which comprises a power module, a controller, a LoRa wireless module for wireless communication with an external host, a serial communication module for data transmission with field equipment, a switching value output module and a collecting component for collecting field equipment information; the power module is connected with the controller, and the controller is connected with the LoRa wireless module, the serial port communication module, the switching value output module and the acquisition assembly respectively.
Description
Technical Field
The utility model relates to a highway tunnel lighting control field especially relates to a wireless collector reaches control system including this wireless collector.
Background
With the rapid development of expressways and the acceleration of urban construction in China, tunnel illumination and urban road illumination are rapidly increased, and field devices such as required sensing devices, ventilation devices and the like are gradually increased. The state of the field equipment is an important component of a tunnel lighting and town road lighting control system, most of the state detection of the field equipment in the traditional tunnel lighting and town road lighting control system is connected with an upper controller in a wired mode, and the communication mode needs more cables, is complex in wiring, high in construction and maintenance difficulty and needs a large amount of manpower and material resources; in addition, signals are transmitted in a long distance, the internal resistance of a wire is high, detection signals are easily interfered in the transmission process, and the detection accuracy is reduced.
In recent years, with the development of the technology of the internet of things, many wireless sensors with short distance, low data rate and low power consumption are widely applied in many fields. However, for tunnel lighting, the environment inside the tunnel is relatively poor, and there are many very long tunnels. The existing wireless sensor with simple function and single communication mode has increasingly obvious contradiction between long distance and low power consumption, and is not suitable for tunnel illumination. With the development of town roads, it is difficult to meet the requirement of intelligent illumination for town roads and internal areas of enterprises.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a wireless collector reaches control system including this wireless collector, the utility model discloses can solve foretell one or more technical problem at least.
In order to achieve the above object, the utility model provides a wireless collector, include:
the system comprises a power module, a controller, a Long Range radio (LORa) wireless module for carrying out wireless communication with an external host, a serial port communication module for carrying out data transmission with field equipment, a switching value output module and a collecting assembly for collecting information of the field equipment, wherein the Long Range radio (LORa) wireless module is used for carrying out wireless communication with the external host;
the power module is connected with the controller, and the controller is respectively connected with the LoRa wireless module, the serial port communication module, the switching value output module and the acquisition assembly.
Preferably, the acquisition assembly comprises a switching value input state acquisition module connected with the field device, the switching value input state acquisition module comprises a voltage limiting circuit formed by connecting a diode D2 and a diode D3 in series, the cathode of the diode D3 is connected with the anode of the diode D2, the cathode of the diode D2 is connected with a 3.3V power supply, and the anode of the diode D3 is grounded;
the switching value input state acquisition module further comprises a first peripheral circuit formed by serially connecting a resistor R11 and a capacitor C9, the first peripheral circuit is connected with the voltage limiting circuit in parallel, the resistor R11 is connected with the negative electrode of the diode D2, the capacitor C9 is connected with the positive electrode of the diode D3, the negative electrode of the diode D3 is further connected with a resistor R12, one end of the resistor R12 is connected with a Kin3 pin of a controller, and the other end of the resistor R12 is connected with a KIn + pin of a wiring terminal P3.
Preferably, the acquisition assembly further comprises an analog current acquisition module connected with the field device, the analog current acquisition module comprises a voltage limiting circuit formed by connecting a diode D5 and a diode D6 in series, the anode of the diode D5 is connected with the cathode of the diode D6, the cathode of the diode D5 is connected with a 3.3V power supply, and the anode of the diode D6 is grounded;
the analog current acquisition module further comprises a resistor R18 and a capacitor C15 which are connected with the diode D6 In parallel, one end of the resistor R18 is connected to the negative electrode of the diode D6 through a resistor R16, the other end of the resistor R18 is connected with the positive electrode of the diode D6, one end of the resistor R16 is connected to an Ain2 pin of the controller, and the other end of the resistor R16 is connected with an In + pin of a wiring terminal P4.
Preferably, the acquisition assembly further comprises an analog voltage acquisition module connected with the field device, the analog voltage acquisition module comprises a voltage limiting circuit formed by connecting a diode D7 and a diode D8 in series, the anode of the diode D7 is connected with the cathode of the diode D8, the cathode of the diode D7 is connected with a 3.3V power supply, and the anode of the diode D8 is grounded;
the analog voltage acquisition module further comprises a resistor R25 and a capacitor C19 which are connected with the diode D8 in parallel, the first end of the resistor R25 is connected to the cathode of the diode D8 through a resistor R23, the second end of the resistor R25 is connected with the anode of the diode D8, the first end of the resistor R25 is further connected with one end of a resistor R24, the other end of the resistor R24 is connected with a Vin + pin of a wiring terminal P5, and one end of the resistor R23 is connected to an Ain4 pin of the controller.
Preferably, the collector further comprises an external watchdog module, and the external watchdog module is connected with the controller.
Preferably, the power supply module includes a first power supply module for converting commercial power into 12V dc voltage, a second power supply module for converting the 12V dc voltage into 3.3V dc voltage, and a third power supply module for converting the 12V dc voltage into 5V dc voltage, where the first power supply module is connected to the switching value output module, the second power supply module is connected to the controller, and the third power supply module is connected to the serial port communication module.
As a general technical concept, the utility model also provides a control system including above-mentioned wireless collector, control system still includes:
the system comprises a host computer, a wireless coordinator and a control unit, wherein the host computer is used for generating an acquisition instruction and sending the acquisition instruction to the wireless coordinator; and is also used for receiving feedback information from the wireless coordinator;
the wireless coordinator is used for receiving an acquisition instruction from the host, analyzing whether the acquisition instruction is related to the wireless acquisition device or not, and if so, sending the acquisition instruction to the wireless acquisition device to execute corresponding action; the wireless coordinator is also used for receiving feedback information from the wireless collector and sending the feedback information to the host;
and the wireless coordinator and the host are in bus type serial communication.
The utility model discloses following beneficial effect has:
the utility model provides a wireless collector gathers field device information through controller control collection subassembly, and the circuit that the collection subassembly adopted constitutes acquisition circuit through components and parts such as resistance-capacitance, and structural design is simple, has removed the complicacy that current circuit adopted ADC chip or other sampling circuit from, and more laminating practical application's current-voltage detection circuit, collection field device's that can be more accurate relevant information, and convenient to use implementation cost is low.
The utility model provides a control system including above-mentioned wireless collector adopts the loRa spread spectrum technique to carry out wireless transmission, and transmission distance is far away, and the interference killing feature is strong, can realize data acquisition, remote communication and data forwarding fast effectively.
The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic structural diagram of a wireless collector according to a preferred embodiment of the present invention;
fig. 2 is a circuit diagram of the switching value input state acquisition module according to the preferred embodiment of the present invention;
fig. 3 is a circuit diagram of an analog current collection module according to a preferred embodiment of the present invention;
fig. 4 is a circuit diagram of the analog voltage acquisition module according to the preferred embodiment of the present invention.
Reference numerals:
1. a controller; 2. a LoRa wireless module; 3. a serial port communication module; 4. a switching value output module; 5. a switching value input state acquisition module; 6. an analog current acquisition module; 7. an analog voltage acquisition module; 8. an external watchdog module.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather the intention is merely to facilitate a distinction between corresponding parts. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "both sides", "outside", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object to be described is changed, the relative positional relationships are changed accordingly.
Example 1
As shown in fig. 1, the present embodiment provides a wireless collector, including:
the system comprises a power module, a controller 1, a LoRa wireless module 2 for carrying out wireless communication with an external host, a serial port communication module 3 for carrying out data transmission with field equipment, a switching value output module 4 and an acquisition assembly for acquiring information of the field equipment;
the power module is connected with the controller 1, and the controller 1 is connected with the LoRa wireless module 2, the serial port communication module 3, the switching value output module 4 and the acquisition assembly respectively.
Foretell wireless collector passes through controller 1 control collection subassembly and gathers field device information, and the circuit that the collection subassembly adopted constitutes acquisition circuit through components and parts such as resistance-capacitance, and structural design is simple, has removed the complicacy that current circuit adopted ADC chip or other sampling circuit from, and the current-voltage detection circuit of more laminating practical application can more accurate collection field device's relevant information, and convenient to use implementation cost is low.
In a preferred embodiment of the present embodiment, the acquisition module includes a switching value input state acquisition module 5 connected to the field device, and a circuit diagram thereof is shown in fig. 2 below, where the switching value input state acquisition module 5 includes a voltage limiting circuit formed by a diode D2 and a diode D3 connected in series, a cathode of the diode D3 is connected to an anode of the diode D2, a cathode of the diode D2 is connected to the 3.3V power supply, and an anode of the diode D3 is grounded.
The switching value input state acquisition module 5 further comprises a first peripheral circuit formed by connecting a resistor R11 and a capacitor C9 in series, the first peripheral circuit is connected with the voltage limiting circuit in parallel, the resistor R11 is connected with the cathode of a diode D2, and the capacitor C9 is connected with the anode of a diode D3. The cathode of the diode D3 is connected to pin 1(KIn +) of the terminal P3 through a resistor R12, the other end of the resistor R12 is connected to pin Kin3 of the controller 1, and the anode of the diode D3 is connected to pin 1(GND) of the terminal P3. Preferably, in this embodiment, the resistance of the resistor R11 is 30k, the resistance of the resistor R12 is 510 ohms, and the capacitance C9 is 4.7uf, but the present invention does not limit the specific values of each resistor or capacitor, and under the condition that the same effect can be achieved, the values of each device can be adjusted to a certain extent, and the specific values here are only used as examples. During specific work, the diode D2 and the diode D3 limit the voltage acquired by the switching value input interface within 3.3V, and the voltage is input into the controller 1 to realize wireless acquisition of the switching value state.
In this embodiment, the field device is an electromechanical device such as a sensing device or a ventilation device. The field device is an existing device to be tested, and will not be described herein.
It should be noted that, in this embodiment, a single chip microcomputer is used as the controller 1, preferably, STM8S003F3P6 is a commercially available existing device, but the present invention does not limit this, and the single chip microcomputer may be replaced by other devices that can achieve the same function.
As shown in fig. 3, the acquisition assembly further includes an analog current acquisition module 6 connected to the field device, where the analog current acquisition module 6 includes a voltage limiting circuit formed by a diode D5 and a diode D6 connected in series, an anode of the diode D5 is connected to a cathode of the diode D6, a cathode of the diode D5 is connected to the 3.3V power supply, and an anode of the diode D6 is grounded;
the analog current acquisition module 6 further comprises a resistor R18 and a capacitor C15 which are connected with the diode D6 In parallel, one end of the resistor R18 is connected to the negative electrode of the diode D6 through a resistor R16, one end of the resistor R16 is connected to an Ain2 pin of the controller 1, the other end of the resistor R16 is connected with an In + pin of the wiring terminal P4, and the other end of the resistor R18 is connected with the positive electrode of the diode D6. Preferably, in this embodiment, the capacitance C15 is 4.7uf, and in FIG. 3, R18 is used for current detection, and the voltage thereon reflects the (4-20 mA) magnitude of the current of the field device of the access port P4; the diodes D5 and D6 limit the voltage on the R18 within 3.3V, and the voltage is input into the singlechip to realize wireless acquisition of the analog current of the field device.
As shown in fig. 4, the acquisition assembly further includes an analog voltage acquisition module 7 connected to the field device, where the analog voltage acquisition module 7 includes a voltage limiting circuit formed by a diode D7 and a diode D8 connected in series, an anode of the diode D7 is connected to a cathode of the diode D8, a cathode of the diode D7 is connected to the 3.3V power supply, and an anode of the diode D8 is grounded;
the analog voltage acquisition module 7 further comprises a resistor R25 and a capacitor C19 which are connected with the diode D8 in parallel, a first end of the resistor R25 is connected to a negative electrode of the diode D8 through a resistor R23, a second end of the resistor R25 is connected with a positive electrode of the diode D8, a first end of the resistor R25 is further connected with one end of a resistor R24, the other end of the resistor R24 is connected with a Vin + pin of the connection terminal P5, and one end of the resistor R23 is connected to an Ain4 pin of the controller 1. Preferably, in the embodiment, C19 is 4.7uf, and in FIG. 4, R24 and R25 convert the voltage range of 0-10V input to the port P5 into 0-2.5V; the diodes D7 and D8 limit the voltage entering the single chip microcomputer within 3.3V and input the voltage into the single chip microcomputer to realize wireless acquisition of the analog voltage of the field equipment.
As a preferred embodiment of this embodiment, the collector further includes an external watchdog module 8, and the external watchdog module 8 is connected to the controller 1. In this embodiment, the external watchdog module 8 is used to restart the system, thereby further ensuring the robustness of the system.
As a preferred embodiment of this embodiment, the power supply module includes a first power supply module for converting the commercial power into 12V dc voltage, a second power supply module for converting the 12V dc voltage into 3.3V dc voltage, and a third power supply module for converting the 12V dc voltage into 5V dc voltage, the first power supply module is connected to the switching value output module 4, the first power supply module provides 12V voltage to the relay coil of the switching value output module, the second power supply module is connected to the controller 1, and the second power supply module provides 3.3V voltage to the controller 1, the LoRa wireless module 2, the external watchdog module 8, and the above acquisition components; the third power supply module is connected with the serial port communication module 3. The serial port communication module 3 is supplied with 5V voltage, and in the embodiment, the serial port communication module 3 is preferably RS 485. It should be noted that, the third power module is an isolation power module, and in this embodiment, the isolation power module adopted is strong in anti-interference capability and high in safety, and when the power supply is abnormal, the influence on the load is small, so that the controller 1 and the wireless communication function can be guaranteed to be normal.
Example 2
This embodiment provides a control system including the wireless acquisition device in embodiment 1, and the control system further includes:
the host is used for generating an acquisition instruction and sending the acquisition instruction to the wireless coordinator; and is also used for receiving feedback information from the wireless coordinator;
the wireless coordinator is used for receiving the acquisition instruction from the host, analyzing whether the acquisition instruction is related to the wireless acquisition device or not, and if so, sending the acquisition instruction to the wireless acquisition device to execute corresponding action; the wireless coordinator is also used for receiving the feedback information from the wireless collector and sending the feedback information to the host;
the wireless coordinator and the host are in bus type serial communication.
According to the control system, the wireless transmission between the wireless coordinator and the wireless collector is realized by adopting the LoRa spread spectrum technology, the transmission distance is long, the anti-interference capability is strong, and the data acquisition, the remote communication and the data forwarding can be quickly and effectively realized. Aiming at complex environments such as tunnels and the like, the problem of complex wiring difficulty is solved.
Specifically, in actual operation, when the control system works specifically, after receiving wireless command information sent by the wireless coordinator with a network number consistent with the network number of the control system, the wireless collector firstly judges whether the command is a data transparent transmission command, if so, runs a preset data transparent transmission function to obtain data to be transparent transmitted, and transmits the data to be transparent transmitted to the field device through the serial port. If the field device has data returned to the wireless collector through the serial port, the wireless collector feeds the data back to the wireless coordinator in the same network.
If the command is not the data transparent transmission command, whether the command is the switching value state acquisition command is judged, if so, the wireless acquisition device acquires the switching state of the field device connected with the switching value state acquisition port through the switching value state acquisition module, and then returns the switching value state information to be fed back to the wireless coordinator in the same network.
If the command is not the on-off state acquisition command, judging whether the command is an analog current acquisition command, if so, acquiring the current of the field device connected with the analog current acquisition port by the wireless acquisition device through the analog current acquisition module 6, and then returning current state information to the wireless coordinator in the same network.
If the command is not the analog current acquisition command, judging whether the command is the analog voltage acquisition command, if so, acquiring the voltage of the field device connected with the analog voltage acquisition port by the wireless acquisition device through the analog voltage acquisition module 7, and then returning the voltage state information to the wireless coordinator in the same network.
If the command is not the analog voltage acquisition command, whether the command is a switching value output command is judged, and if the command is the switching value output command, the relay module makes corresponding action to control the on or off of a field device power supply (or a signal).
If the network parameter is not the switching value output command, judging whether the network parameter is the command for modifying the node network parameters, if so, modifying the network parameters of the wireless acquisition device on line, automatically restarting after the modification is finished, and feeding the restarting information back to the wireless coordinator in the same network.
If the command is not the command for modifying the node network parameters, the wireless acquisition device continues to wait for new wireless command information to arrive.
The control method can modify the network parameters of the wireless collector on line, is flexible in networking and has strong adaptability to the complex environment of the tunnel energy.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A wireless collector, comprising:
the system comprises a power module, a controller (1), a LoRa wireless module (2) for carrying out wireless communication with an external host, a serial port communication module (3) for carrying out data transmission with field equipment, a switching value output module (4) and a collection assembly for collecting information of the field equipment;
the power module with controller (1) links to each other, controller (1) respectively with loRa wireless module (2) serial ports communication module (3) switching value output module (4) and the collection subassembly links to each other.
2. The wireless collector of claim 1, wherein the collection component comprises a switching value input state collection module (5) connected with a field device, the switching value input state collection module (5) comprises a voltage limiting circuit formed by a diode D2 and a diode D3 in series, the cathode of the diode D3 is connected with the anode of the diode D2, the cathode of the diode D2 is connected with a 3.3V power supply, and the anode of the diode D3 is grounded;
the switching value input state acquisition module (5) further comprises a first peripheral circuit formed by connecting a resistor R11 and a capacitor C9 in series, the first peripheral circuit is connected with the voltage limiting circuit in parallel, the resistor R11 is connected with the negative electrode of the diode D2, the capacitor C9 is connected with the positive electrode of the diode D3, the negative electrode of the diode D3 is further connected with a resistor R12, one end of the resistor R12 is connected with a pin Kin3 of the controller (1), and the other end of the resistor R12 is connected with a pin KIn + of the connecting terminal P3.
3. The wireless collector of claim 1 or 2, wherein the collection assembly further comprises an analog current collection module (6) connected to a field device, the analog current collection module (6) comprises a voltage limiting circuit consisting of a diode D5 and a diode D6 connected in series, the anode of the diode D5 is connected to the cathode of the diode D6, the cathode of the diode D5 is connected to a 3.3V power supply, and the anode of the diode D6 is grounded;
the analog current acquisition module (6) further comprises a resistor R18 and a capacitor C15 which are connected with the diode D6 In parallel, one end of the resistor R18 is connected to the negative electrode of the diode D6 through a resistor R16, the other end of the resistor R18 is connected with the positive electrode of the diode D6, one end of the resistor R16 is connected to an Ain2 pin of the controller (1), and the other end of the resistor R16 is connected with an In + pin of a wiring terminal P4.
4. The wireless collector of claim 3, wherein the collection assembly further comprises an analog voltage collection module (7) connected to the field device, the analog voltage collection module (7) comprises a voltage limiting circuit formed by a diode D7 and a diode D8 connected in series, the anode of the diode D7 is connected to the cathode of the diode D8, the cathode of the diode D7 is connected to a 3.3V power supply, and the anode of the diode D8 is grounded;
the analog voltage acquisition module (7) further comprises a resistor R25 and a capacitor C19 which are connected with the diode D8 in parallel, the first end of the resistor R25 is connected to the negative electrode of the diode D8 through a resistor R23, the second end of the resistor R25 is connected with the positive electrode of the diode D8, the first end of the resistor R25 is further connected with one end of a resistor R24, the other end of the resistor R24 is connected with a Vin + pin of a wiring terminal P5, and one end of the resistor R23 is connected to an Ain4 pin of the controller (1).
5. The wireless collector of claim 1, further comprising an external watchdog module (8), the external watchdog module (8) being connected to the controller (1).
6. The wireless collector according to claim 1, wherein the power supply module comprises a first power supply module for converting mains supply into 12V direct current voltage, a second power supply module for converting the 12V direct current voltage into 3.3V direct current voltage, and a third power supply module for converting the 12V direct current voltage into 5V direct current voltage, the first power supply module is connected with a switching value output module (4), the second power supply module is connected with the controller (1), and the third power supply module is connected with the serial port communication module (3).
7. A control system comprising the wireless collector of any of claims 1-6, wherein the control system further comprises:
the system comprises a host computer, a wireless coordinator and a control unit, wherein the host computer is used for generating an acquisition instruction and sending the acquisition instruction to the wireless coordinator; and is also used for receiving feedback information from the wireless coordinator;
the wireless coordinator is used for receiving an acquisition instruction from the host, analyzing whether the acquisition instruction is related to the wireless acquisition device or not, and if so, sending the acquisition instruction to the wireless acquisition device to execute corresponding action; the wireless coordinator is also used for receiving feedback information from the wireless collector and sending the feedback information to the host;
and the wireless coordinator and the host are in bus type serial communication.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110136416A (en) * | 2019-04-29 | 2019-08-16 | 湖南沛科交通工程技术股份有限公司 | Wireless collection device, control system and control method including the wireless collection device |
| CN112564484A (en) * | 2020-11-05 | 2021-03-26 | 北京全路通信信号研究设计院集团有限公司 | High-safety remote emergency switch device based on Internet of things technology and data processing method |
-
2019
- 2019-04-29 CN CN201920606589.8U patent/CN210324546U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110136416A (en) * | 2019-04-29 | 2019-08-16 | 湖南沛科交通工程技术股份有限公司 | Wireless collection device, control system and control method including the wireless collection device |
| CN112564484A (en) * | 2020-11-05 | 2021-03-26 | 北京全路通信信号研究设计院集团有限公司 | High-safety remote emergency switch device based on Internet of things technology and data processing method |
| CN112564484B (en) * | 2020-11-05 | 2022-04-12 | 北京全路通信信号研究设计院集团有限公司 | High-safety remote emergency switch device based on Internet of things technology and data processing method |
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Address after: No. 13008, building 1-B, Zhongnan headquarters base, No. 688, Section 2, Wanjiali South Road, Yuhua District, Changsha City, Hunan Province, 410000 Patentee after: Zhongjin Peike Construction Co.,Ltd. Address before: No. 13008, building 1-B, Zhongnan headquarters base, No. 688, Section 2, Wanjiali South Road, Yuhua District, Changsha City, Hunan Province, 410016 Patentee before: HUNAN PEAK TRAFFIC ENGINEERING TECHNOLOGY Co.,Ltd. |