CN211909258U - Dimming bus detection device and tunnel lighting system - Google Patents
Dimming bus detection device and tunnel lighting system Download PDFInfo
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- CN211909258U CN211909258U CN202020451668.9U CN202020451668U CN211909258U CN 211909258 U CN211909258 U CN 211909258U CN 202020451668 U CN202020451668 U CN 202020451668U CN 211909258 U CN211909258 U CN 211909258U
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Abstract
The utility model discloses a dimming bus detection device and a tunnel lighting system, wherein the tunnel lighting system is provided with a dimming bus, and the dimming bus detection device comprises a shell, and a power supply circuit, an acquisition circuit, a MCU and a display module which are arranged in the shell; the output end of the power supply circuit is connected with the power end of the MCU, the detection end of the acquisition circuit is connected with the dimming bus, the output end of the acquisition circuit is connected with the input end of the MCU, and the output end of the MCU is connected with the input end of the display module; the acquisition circuit is used for acquiring the voltage and the current of the dimming bus and outputting a voltage signal and a current signal to the MCU; and the MCU is used for determining the working state of the dimming bus according to the voltage signal and the current signal and controlling the display module to display the working state of the dimming bus. The utility model discloses technical scheme has promoted tunnel lighting system bus fault detection's of adjusting luminance convenience.
Description
Technical Field
The utility model relates to a circuit detection technical field, in particular to bus detection device and tunnel lighting system adjust luminance.
Background
At present, the brightness of lamps in a tunnel is mostly adjusted by adopting a 0-10V or 0-5V dimming bus mode in an intelligent tunnel lighting control system, so that the traffic safety in the tunnel is ensured. However, because the number of lamp loads connected to the dimming bus is different and the field construction is complicated, when the dimming bus line in the tunnel is in fault, only a multimeter can be used for simple measurement. The dimming bus needs to be cut off by adopting a universal meter measurement mode, and the universal meter is connected in series with the bus, so that the defects of long construction period, complex test process and the like are caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a bus detection device and tunnel lighting system adjust luminance aims at promoting tunnel lighting system and adjusts luminance bus fault detection's convenience.
In order to achieve the above object, the present invention provides a dimming bus detection device, which is applied to a tunnel lighting system, wherein the tunnel lighting system has a dimming bus, and the dimming bus detection device comprises a housing, and a power supply circuit, an acquisition circuit, an MCU and a display module which are arranged in the housing;
the output end of the power supply circuit is connected with the power supply end of the MCU, the detection end of the acquisition circuit is connected with the dimming bus, the output end of the acquisition circuit is connected with the input end of the MCU, and the output end of the MCU is connected with the input end of the display module;
the acquisition circuit is used for acquiring the voltage and the current of the dimming bus and outputting a voltage signal and a current signal to the MCU;
and the MCU is used for determining the working state of the dimming bus according to the voltage signal and the current signal and controlling the display module to display the working state of the dimming bus.
Optionally, the dimming bus detection device further comprises a switch control module, and a control end of the switch control module is connected with an enable end of the MCU;
and the switch control module is used for outputting a control instruction to the MCU so as to control the acquisition circuit to acquire the voltage and the current of the dimming bus.
Optionally, the switch control module is a push switch or a touch switch.
Optionally, the dimming bus detection device further comprises a communication module, and the communication module is connected with the MCU;
and the communication module is used for sending the working state of the dimming bus to a server under the control of the MCU.
Optionally, the communication module is an ethernet module.
Optionally, the power supply circuit includes a power supply and a power supply management module, and the power supply management module is connected to the MCU and the power supply;
and the power supply management module is used for converting the voltage output by the power supply to supply power for the MCU.
Optionally, the power supply is a rechargeable battery and a USB charging interface, and the rechargeable battery and the charging interface are respectively connected to the power management module.
Optionally, the display module is a TFT liquid crystal display or an LED display.
The utility model also provides a tunnel lighting system, the tunnel lighting system includes the above-mentioned dimming bus detection device, the dimming bus detection device includes the casing and sets up power supply circuit, acquisition circuit, MCU and the display module in the casing;
the output end of the power supply circuit is connected with the power supply end of the MCU, the detection end of the acquisition circuit is connected with the dimming bus, the output end of the acquisition circuit is connected with the input end of the MCU, and the output end of the MCU is connected with the input end of the display module;
the acquisition circuit is used for acquiring the voltage and the current of the dimming bus and outputting a voltage signal and a current signal to the MCU;
and the MCU is used for determining the working state of the dimming bus according to the voltage signal and the current signal and controlling the display module to display the working state of the dimming bus.
The technical scheme of the utility model is that a dimming bus detection device is arranged in the tunnel lighting system, the dimming bus detection device comprises a power supply circuit, an acquisition circuit, an MCU and a display module, the output end of the power supply circuit is connected with the power end of the MCU, and the detection end of the acquisition circuit is connected with the dimming bus in the tunnel lighting system and is used for acquiring the voltage and the current of the dimming bus and outputting a voltage signal and a current signal to the MCU; the output end of the acquisition circuit is connected with the input end of the MCU, the output end of the MCU is connected with the input end of the display module, and the MCU determines the working state of a dimming bus in the tunnel lighting system and controls the display module to display the working state of the dimming bus when receiving the voltage signal and the current signal detected by the acquisition circuit. The problem of detecting tunnel lighting system's dimming bus in the correlation technique need cut the dimming bus, and the tandem multimeter carries out the measurement is solved, the convenience of tunnel lighting system dimming bus fault detection has been promoted.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of the dimming bus detection device of the present invention;
fig. 2-4 are schematic circuit diagrams of an embodiment of the present invention, which is adopted in the dimming bus detection apparatus.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
40 | |
| 20 | |
50 | |
| 30 | MCU | 60 | Communication module |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "A and/or B" as an example, including either the A aspect, or the B aspect, or both A and B satisfied aspects. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a bus detection device and tunnel lighting system adjust luminance.
In an embodiment of the present invention, referring to fig. 1, the dimming bus detection device includes a housing, and a power supply circuit 10, an acquisition circuit 20, an MCU30 and a display module 40 disposed in the housing;
the output end of the power supply circuit 10 is connected with the power supply end of the MCU30, the detection end of the acquisition circuit 20 is connected with the dimming bus, the output end of the acquisition circuit 20 is connected with the input end of the MCU30, and the output end of the MCU30 is connected with the input end of the display module 40;
the acquisition circuit 20 is configured to acquire voltage and current of the dimming bus, and output a voltage signal and a current signal to the MCU 30;
the MCU30 is configured to determine the operating state of the dimming bus according to the voltage signal and the current signal, and control the display module 40 to display the operating state of the dimming bus.
In this embodiment, the power supply circuit 10 includes a power supply and a power supply management module, and the power supply management module is connected to the MCU30 and the power supply;
the power management module is configured to convert a voltage output by the power supply to supply power to the MCU 30.
It can be understood that the power supply outputted by the power supply is converted by the power management module and outputted to the MCU30 to supply power to the MCU30, so that the MCU30 in the dimming bus inspection device can operate normally. In addition, the power supply in the power supply module may also supply power to the acquisition circuit 20 and the display module 40, so that the acquisition circuit 20 may acquire the working state of the dimming bus in the tunnel lighting system in real time, and the display module 40 may display the working state of the dimming bus in the tunnel lighting system acquired by the acquisition circuit 20.
In this embodiment, the power supply is a rechargeable battery and a USB charging interface, and the rechargeable battery and the USB charging interface are respectively connected to the power management module. It should be noted that the rechargeable battery is used for supplying power to the dimming bus detection device all the time, and monitoring the dimming bus in the tunnel lighting system in real time. Meanwhile, when the maintenance staff need to detect the dimming bus in the tunnel lighting system on site and the rechargeable battery is out of power, the maintenance staff can also supply power for the dimming bus detection device through the USB charging interface external power supply in the power supply module, so that the maintenance staff can detect and maintain the dimming bus in the tunnel lighting system, convenience in maintaining the dimming bus in the tunnel lighting system is improved, and traffic safety inside the tunnel is improved.
It is understood that the rechargeable battery may be a lithium ion battery, a nickel hydrogen battery or a nickel chromium battery, and the present embodiment is not limited thereto.
In the present embodiment, the circuit principle of the acquisition circuit 20 is as shown in fig. 2 to 4. Specifically, referring to fig. 2, a first end of a ninth resistor IN the acquisition circuit 20 is connected to the OUTA pin of the second operational amplifier chip and is a PWM IN1 port of the acquisition circuit 20, a second end of the ninth resistor is connected to a first end of a thirtieth resistor and is connected to the-INA pin of the second operational amplifier chip, and a second end of the thirtieth resistor is grounded; a first end of the seventh resistor and a common end of a first end of the tenth capacitor are connected with a + INA pin of the second operational amplifier chip, a second end of the seventh resistor is connected with a second end of the thirty-fourth resistor and is a PWM1 port of the acquisition circuit 20, and the first end of the thirty-fourth resistor and the common end of the first end of the tenth capacitor are grounded; the first end of the ninth capacitor is connected with the VCC pin of the second operational amplifier chip and is a 15V power port of the second operational amplifier chip, and the second end of the ninth capacitor is grounded.
Referring to fig. 3, a first end of the twenty-first resistor is a PWM IN1 port of the acquisition circuit 20, a second end of the twenty-first resistor, a first end of the twelfth capacitor, a first end of the twenty-eighth resistor and a base of the first triode are connected to each other, a second end of the twelfth capacitor is grounded, a collector of the first triode is connected to a first end of the fourteenth resistor, a second end of the fourteenth resistor is connected to a first end of the ptc thermistor and to a 15V power port; the emitter of the first triode, the base of the second triode and the first end of the thirteenth capacitor are connected with each other, the second end of the thirteenth capacitor is grounded, and the second end of the positive temperature coefficient thermistor is connected with the collector of the second triode; a second end of the twenty-eighth resistor is connected with a base electrode of the fourth triode, an emitting electrode of the second triode, an emitting electrode of the fourth triode, a collecting electrode of the fifth triode, a first end of the twenty-ninth resistor and a first end of the eleventh resistor are connected with each other and are a PWM OUT1 port of the acquisition circuit 20; a collector of the fourth triode is connected with a base of the fifth triode, and an emitter of the fifth triode is connected with a first end of the thirty-second resistor and is an AD1 port of the acquisition circuit 20; the second end of the thirty-second resistor is connected with the first end of the thirty-third resistor and grounded, and the second end of the thirty-third resistor is an AD2 port of the acquisition circuit 20; the second end of the twenty-ninth resistor is connected to the second end of the twelfth resistor and grounded, and the second end of the eleventh resistor is connected to the first end of the twelfth resistor and is an AD3 port of the acquisition circuit 20.
Referring to fig. 4, in the acquisition circuit 20, a first end of a first resistor is connected to an OUTA pin of the first operational amplifier chip, a second end of the first resistor is connected to a first end of a third resistor, and is connected to an-INA pin of the second operational amplifier chip, and a second end of the third resistor is grounded; the common end of the first end of the fourth resistor, the first end of the third capacitor and the first end of the eighth resistor is connected with the + INA pin of the first operational amplifier chip, the second end of the third capacitor is connected with the second end of the eighth resistor and grounded, and the second end of the fourth resistor is the AD1 port of the acquisition circuit 20; a VCC pin of the first operational amplifier chip is connected with a 5V power supply; the OUTB pin of the first operational amplifier chip is connected with the first end of the second resistor, the second end of the second resistor is connected with the first end of the fifth resistor and is connected with the-INB pin of the first operational amplifier chip, and the second end of the fifth resistor is grounded; a first end of the tenth resistor, a first end of the fifth capacitor, and a first end of the fourth resistor are connected to each other and to the + INB pin of the first operational amplifier chip, and a second end of the fourth resistor is an AD2 port of the acquisition circuit 20.
Furthermore, the PWM1 port IN fig. 2 is connected to the MCU30 IN the dimming bus detection device, and is converted into a 0-5V analog voltage signal through the seventh resistor, the tenth capacitor and the thirty-fourth resistor, and after the second operational amplifier chip amplifies the voltage signal to a 0-11V voltage signal, the voltage signal is output from the OUTA pin of the second operational amplifier chip to the PWM _ IN1 port IN fig. 3; the voltage signal input from the PWM _ IN1 port is amplified and output through the first triode, the second triode and the fifth triode, two ends of the PWM _ OUT1 port and the AD2 port are connected to the dimming bus, and 0-10V dimming bus voltage signal is output; the AD3 port is connected to the AD sampling port of the MCU30 in the dimming bus detection device after being divided by the eleventh resistor and the twelfth resistor so as to acquire the voltage state of the dimming bus and judge whether the dimming bus in the tunnel lighting system is normal. The AD1 port is connected with the emitter of the fifth triode and one end of the thirty-second resistor, the dimming bus current is connected with the AD1 port of China in figure 4 through the AD1 port after passing through the fifth triode and the thirty-second resistor, the voltage drop on the thirty-second resistor is connected with the MCU30 in the dimming bus detection device through the OUTA port after being amplified by the first operational amplifier chip, and therefore the dimming bus current-filling parameters are collected. The dimming bus output current passes through the PWM _ OUT1 port and the dimming bus load is connected to the AD2 port and forms a voltage drop across the AD2 port of the thirty-third resistor. Meanwhile, an AD2 port of the thirty-third resistor is connected to an AD2 port of the fourth resistor in fig. 4, an output voltage signal of an AD2 port of the thirty-third resistor is amplified through the first operational amplifier chip, and is connected to the MCU30 in the dimming bus detection device through an OUTB pin of the first operational amplifier chip, a parameter of an output current of the dimming bus is acquired, and the parameter is calculated, analyzed and compared with a preset voltage and a preset current of the dimming bus through the MCU30 in the dimming bus detection device to judge whether the working state of the dimming bus is normal.
In the above embodiment, the first operational amplifier chip and the second operational amplifier chip are both dual operational amplifiers of model LM 358. It can be appreciated that the LM358 dual operational amplifier internally includes two independent, high gain, internal frequency compensated operational amplifiers, which is suitable for single power supply applications with a wide range of power supply voltages, and also for dual power supply modes, where the power supply current is independent of the power supply voltage under the recommended operating conditions. The application range of the device comprises a sensing amplifier, a direct current gain module and other occasions using an operational amplifier which can be powered by a single power supply.
In the above embodiment, the MCU30 may be provided with a preset voltage signal and a preset current signal, and after the acquisition circuit 20 detects the voltage signal and the current signal of the dimming bus, the MCU30 controls the detected voltage signal to be compared with the preset voltage signal, and controls the detected current signal to be compared with the preset current signal, so as to determine the operating state of the dimming bus in the tunnel lighting system, and controls the detected voltage signal, the detected current signal and the operating state of the dimming bus to be displayed on the display module 40. It can be understood that the MCU30 may be a single chip, a DSP, a FPGA programmable device, etc., and the display module 40 may be a TFT liquid crystal display, an LED display, etc., which is not specifically limited in this embodiment.
The utility model discloses technical scheme is through setting up a bus detection device of adjusting luminance in tunnel lighting system, including supply circuit 10, acquisition circuit 20, MCU30 and display module 40 in the bus detection device of adjusting luminance, supply circuit 10's output is connected with MCU 30's power end, acquisition circuit 20's sense terminal is connected in the bus of adjusting luminance in tunnel lighting system for gather the voltage and the electric current of the bus of adjusting luminance, and output voltage signal and current signal to MCU 30; the output end of the acquisition circuit 20 is connected with the input end of the MCU30, the output end of the MCU30 is connected with the input end of the display module 40, and the MCU30 determines the operating state of the dimming bus in the tunnel lighting system and controls the display module 40 to display the operating state of the dimming bus when receiving the voltage signal and the current signal detected by the acquisition circuit 20. The problem of detecting tunnel lighting system's the bus of adjusting luminance in the correlation technique need be cut off the bus of adjusting luminance, and the tandem multimeter carries out the measurement is solved, promoted tunnel lighting system adjust luminance bus fault detection's convenience, the bus detection device of adjusting luminance of this scheme detects the bus of adjusting luminance in the tunnel lighting system simultaneously, has also promoted the accuracy that detects.
In an embodiment, referring to fig. 1, the dimming bus detection apparatus further includes a switch control module 50, and a control terminal of the switch control module 50 is connected to an enable terminal of the MCU 30;
the switch control module 50 is configured to output a control instruction to the MCU30 to control the acquisition circuit 20 to acquire the voltage and the current of the dimming bus.
Further, the switch control module 50 is a push switch or a touch switch. It can be understood that, when the maintenance worker needs to detect the voltage of the dimming bus in the tunnel lighting system, the switch control module 50 controls the dimming bus detection device to detect the voltage of the dimming bus; when maintenance staff need to detect the current of the dimming bus in the tunnel lighting system, the switch control module 50 controls the dimming bus detection device to detect the current of the dimming bus; when the maintenance staff needs to detect the current flowing during the operation of the MCU30 in the dimming bus detection device, the switch control module 50 controls the dimming bus detection device to detect the current flowing. The light dimming bus detection device has the advantages that the light dimming bus is connected to the detection end of the light dimming bus detection device, whether the states of the voltage, the current filling and other parameters of the light dimming bus are normal or not can be detected quickly, and the efficiency of maintenance workers is improved.
In one embodiment, referring to fig. 1, the dimming bus detection apparatus further includes a communication module 60, wherein the communication module 60 is interconnected with the MCU 30;
the communication module 60 is configured to send the working state of the dimming bus to the server under the control of the MCU 30.
In this embodiment, the communication module 60 is an ethernet module. It can be understood that the Ethernet module is communicated with the server to upload the working state of the dimming bus of the tunnel lighting system detected by the dimming bus detection device to the server in real time, so that maintenance workers can quickly know the working state of the dimming bus of the tunnel lighting system, the problem that the maintenance workers need to overhaul the dimming bus at regular time is solved, and labor cost is saved.
The utility model also provides a tunnel lighting system, the tunnel lighting system includes the above-mentioned bus detection device that adjusts luminance, the bus detection device that adjusts luminance includes the casing and sets up power supply circuit 10, acquisition circuit 20, MCU30 and display module 40 in the casing;
the output end of the power supply circuit 10 is connected with the power supply end of the MCU30, the detection end of the acquisition circuit 20 is connected with the dimming bus, the output end of the acquisition circuit 20 is connected with the input end of the MCU30, and the output end of the MCU30 is connected with the input end of the display module 40;
the acquisition circuit 20 is configured to acquire voltage and current of the dimming bus, and output a voltage signal and a current signal to the MCU 30;
the MCU30 is configured to determine the operating state of the dimming bus according to the voltage signal and the current signal, and control the display module 40 to display the operating state of the dimming bus.
The specific structure of the dimming bus detection device refers to the above embodiments, and since the dimming bus detection device adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.
The above is only the optional embodiment of the present invention, and not therefore the limit to the patent scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the scheme conception of the present invention, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.
Claims (9)
1. A dimming bus detection device is applied to a tunnel lighting system, and the tunnel lighting system is provided with a dimming bus and is characterized by comprising a shell, and a power supply circuit, an acquisition circuit, an MCU and a display module which are arranged in the shell;
the output end of the power supply circuit is connected with the power supply end of the MCU, the detection end of the acquisition circuit is connected with the dimming bus, the output end of the acquisition circuit is connected with the input end of the MCU, and the output end of the MCU is connected with the input end of the display module;
the acquisition circuit is used for acquiring the voltage and the current of the dimming bus and outputting a voltage signal and a current signal to the MCU;
and the MCU is used for determining the working state of the dimming bus according to the voltage signal and the current signal and controlling the display module to display the working state of the dimming bus.
2. The dimming bus detection device according to claim 1, further comprising a switch control module, wherein a control terminal of the switch control module is connected to an enable terminal of the MCU;
and the switch control module is used for outputting a control instruction to the MCU so as to control the acquisition circuit to acquire the voltage and the current of the dimming bus.
3. The dimming bus detection device of claim 2, wherein the switch control module is a push switch or a touch switch.
4. The dimming bus detection device of claim 1, further comprising a communication module, the communication module being interconnected with the MCU;
and the communication module is used for sending the working state of the dimming bus to a server under the control of the MCU.
5. The dimming bus detection device of claim 4, wherein the communication module is an ethernet module.
6. The dimming bus detection device of claim 1, wherein the power supply circuit comprises a power supply and a power management module, the power management module connecting the MCU with the power supply;
and the power supply management module is used for converting the voltage output by the power supply to supply power for the MCU.
7. The dimming bus detection device of claim 6, wherein the power source is a rechargeable battery and a USB charging interface, and the rechargeable battery and the USB charging interface are respectively connected to the power management module.
8. The dimming bus detection device of claim 1, wherein the display module is a TFT liquid crystal display or an LED display.
9. A tunnel lighting system, characterized in that it comprises a dimming bus detection device according to any one of claims 1 to 8.
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| CN202020451668.9U CN211909258U (en) | 2020-03-31 | 2020-03-31 | Dimming bus detection device and tunnel lighting system |
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| CN202020451668.9U CN211909258U (en) | 2020-03-31 | 2020-03-31 | Dimming bus detection device and tunnel lighting system |
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| CN211909258U true CN211909258U (en) | 2020-11-10 |
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