CN210488803U

CN210488803U - Device for controlling signal lamp of lane

Info

Publication number: CN210488803U
Application number: CN201922221346.5U
Authority: CN
Inventors: 王海恩; 贺小强
Original assignee: Shanghai Baokang Electronic Control Engineering Co Ltd
Current assignee: Shanghai Baokang Electronic Control Engineering Co Ltd
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-05-08
Anticipated expiration: 2029-12-09

Abstract

The utility model relates to a device for supporting the control of lane signal lamps, which comprises a signal lamp control panel, a plurality of lamp driving circuit modules, a signal lamp control panel and a signal lamp control panel; the fault detection circuit group comprises a plurality of fault detection circuit modules which are connected with the corresponding lamp driving circuit modules and the external signal lamp; the bottom plate control chip is connected with the annunciator lamp control panel through the SPI bus; the wireless Zigbee terminal communication module group comprises a plurality of wireless Zigbee terminal communication modules which are connected with corresponding external signal lamps; the wireless Zigbee brightness detection communication module is connected with the wireless Zigbee terminal communication module through a wireless link; and the photosensitive detector is connected with the wireless Zigbee brightness detection communication module. Adopted the utility model discloses a support the device that realizes lane signal lamp control, directly inserted the core module on the variable lane signal machine bottom plate, remain all functions of original semaphore system, the change of framework has also greatly reduced the price cost of semaphore itself.

Description

Device for controlling signal lamp of lane

Technical Field

The utility model relates to a traffic control device field especially relates to traffic signal control field, specifically indicates a device that supports to realize lane signal lamp control.

Background

The signal lamp control system is an important system at an urban traffic intersection and is used for controlling the states of traffic lights at the intersection, thereby realizing the functions of ensuring the traffic safety of roads, dredging the traffic flow and optimizing the urban traffic condition. However, under the condition of continuous development of traffic, signal lamp control needs for a series of road sections, such as tidal lane signal lamp control and ramp signal lamp control systems, are met.

According to the national standard, the main signal lamp control devices (hereinafter referred to as signal machines) are classified into A, B, C types, and are mainly distinguished by the number of signal lamp lines driven by the signal lamp control devices and the functions of the signal lamp control devices. The class A signal machine has the advantages of minimum driving circuits, simplest functions and lowest price; the highest class C. However, no signal lamp control product applied to the road section is defined in the national standard.

The utility model discloses a variable lane semaphore is the improvement on designing the thinking on the basis of the simple and easy semaphore of baokang company to reduce the price cost of product on the basis of guaranteeing the function, realize the requirement of morning and evening tides lane and circle signal lamp control. Fig. 3 is a schematic diagram of a brightness adjustment scheme of a crossing signal lamp in the prior art, wherein there may be multiple sets of devices in a road section, photosensitive detection results between different devices are not intercommunicated, and there may be detection differences, which may result in inconsistent brightness adjustment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the shortcoming of above-mentioned prior art, providing one kind and satisfying the device that stable performance, with low costs, application scope are comparatively extensive supports to realize lane signal lamp control.

In order to achieve the above object, the utility model discloses a support the device that realizes lane signal lamp control as follows:

the device for realizing the control of the lane signal lamp is mainly characterized by comprising the following components:

the signal lamp control board comprises at least two lamp driving circuit modules;

each fault detection circuit group corresponds to one lamp driving circuit module, each fault detection circuit group comprises at least two fault detection circuit modules, the fault detection circuit modules in each fault detection circuit group are respectively connected with the corresponding lamp driving circuit modules, and each fault detection circuit module is connected with the corresponding external signal lamp; the number of the fault detection circuit groups is less than or equal to the number of the lamp driving circuit modules;

the bottom plate control chip is connected with the annunciator lamp control plate through an SPI bus;

the wireless Zigbee terminal communication module group comprises at least two wireless Zigbee terminal communication modules, and each wireless Zigbee terminal communication module is respectively connected with at least one corresponding external signal lamp;

the wireless Zigbee brightness detection communication module is connected with each wireless Zigbee terminal communication module in the wireless Zigbee terminal communication module group through a wireless link;

and the photosensitive detector is connected with the wireless Zigbee brightness detection communication module.

Preferably, the fault detection circuit module is a metering chip.

Preferably, the backplane control chip comprises a 74HC594 chip.

Preferably, the device further comprises a network port connected with the background signal system platform.

Adopted the utility model discloses a support the device that realizes lane signal lamp control, adopted the scheme of core module independent design, consequently at the in-process of variable lane signal machine design, directly inserted the core module on the variable lane signal machine bottom plate, kept all functions (C type national standard) of original signal machine device. Meanwhile, the price cost of the signal machine is greatly reduced due to the change of the framework, the price cost of the product is reduced on the basis of ensuring the function, and the requirements of controlling signal lamps of tidal lanes and ramp are met.

Drawings

Fig. 1 is a structure diagram of a prior art signal lamp control output circuit.

Fig. 2 is a prior art simplified semaphore hardware architecture diagram.

Fig. 3 is a schematic diagram of a brightness adjustment scheme of a crossing signal lamp in the prior art.

Fig. 4 is a structural diagram of the device for supporting the control of the lane signal lamp according to the present invention.

Fig. 5 is a lamp control output circuit structure diagram of the device for supporting the control of the lane signal lamp of the present invention.

Fig. 6 is a hardware architecture diagram of the lane-changeable traffic signal supporting the device for controlling the lane signal lamp according to the present invention.

Fig. 7 is a schematic diagram of a brightness adjustment scheme of the device for supporting the control of the lane signal lamp according to the present invention.

Detailed Description

In order to more clearly describe the technical content of the present invention, the following further description is given with reference to specific embodiments.

The utility model discloses an among the technical scheme of the device that supports to realize lane signal lamp control, each functional module and the modular unit that wherein include all can correspond to specific hardware circuit in the integrated circuit structure, consequently only relate to the improvement of specific hardware circuit, and the hardware part is not only the carrier that carries out control software or computer program, consequently solves corresponding technical problem and obtains corresponding technological effect and also does not relate to the application of any control software or computer program, that is to say, the utility model discloses only utilize the improvement in the hardware circuit structure that these modules and units relate to can solve the technical problem that will solve to obtain corresponding technological effect, and need not assist and can realize corresponding function with specific control software or computer program.

The utility model discloses a should support device that realizes lane signal lamp control, include wherein:

As a preferred embodiment of the present invention, the fault detection circuit module is a measurement chip.

As a preferred embodiment of the present invention, the backplane control chip includes a 74HC594 chip.

As the preferred embodiment of the present invention, the device further includes a network port connected to the background signal system platform.

The utility model discloses an among the concrete implementation manner, through improving current semaphore product for original simple and easy type semaphore can realize variable lane semaphore function, and further compression on the price cost.

The function requirements of the variable lane signal and the simple signal are different.

The number of control paths is different. The signal lamps of the intersection signal machine which need to be controlled are more, such as straight running signal lamps, left-turning signal lamps and pedestrian signal lamps in all directions. Therefore, the number of required independent signal lamp control circuits is large; and the number of signal lamps which need to be controlled by the road signal machine is less, but the number of the signal lamps is more. For example, in a section with 5 lanes in one direction, the actual tidal lane may have only 1 lane, so that the required number of control roads also only needs 2 groups, and the rest of the signal lamps only need to be powered. But the sections of tidal lanes may have more signal lights with the same signal indication to alert the driver. Such special requirements require the signaler to provide two special functions: one is high-power output and can drive more than 10 signal lamps simultaneously; the other is a constant light output for driving a signal lamp with a constant color.

The utility model discloses with the difference of current product as follows:

1. innovation of high-power output. Generally, signal driving of the lamp control panel is limited. On one hand, more and more signal lamps in application adopt LEDs as luminous sources, and the power is not high; another aspect is the requirement for lamp fault detection, which may place certain limits on the output power. Since the variable lane traffic signal needs to drive 10 or more traffic lights at the same time, the output power is not limited. In the design, the output power is improved by adopting a mode of separating a fault detection module from a lamp driving circuit. That is to say there is no output power limitation for the lane-change signal module, and up to 30 signal lights can be connected in parallel. The circuit of the middle lamp control output of the utility model is shown in figure 5.

2. The lamp driving circuit is innovative. The number of driving paths of the lane signal machine is not large, so that the output of the lamp control can be completely realized by adopting one microprocessor. This is different from class C signals and even company-based simple signals. The lane signal machine directly adopts a serial-to-parallel mode between the core module and the lamp driving circuit, and converts serial data into a parallel driving function by using a 74HC594 chip. Meanwhile, the input pin and the output pin of the 74HC594 chips can also realize the monitoring of the driving signals. The cost reduction, signal lamp synchronism and stability are realized. The utility model discloses well variable lane semaphore hardware framework is as shown in figure 6.

3. Innovation of lamp driving fault detection: the fault detection module is integrated with the lamp control driving circuit. The conventional fault detection circuit needs to acquire sampling data through a high-power sampling resistor, and the high-power sampling resistor limits output power. The utility model discloses the fault detection circuit of sampling adopts the measurement chip to realize, samples lamp voltage and lamp current value to lamp drive circuit through the serial ports extension, acquires the running state of signal lamp. Because the metering chip adopts the manganin resistor for sampling and is matched with the amplifying circuit with large amplification factor and the noise filter circuit, the practical output power can be not limited.

4. The brightness of the signal lamp is adjustable. The variable lane lamp has the function of adjustable brightness mostly, and the effect of energy conservation and environmental protection is realized by reducing the brightness at night. However, due to the application environment of the variable lanes, especially the tidal lanes, more signal lights are needed on a road section to remind the driver. If each lamp is provided with independent brightness-adjustable equipment, but due to the problems of installation position, illumination and the like, the situation that different signal lamps are in different brightness states often occurs. The effect is poor in appearance. The lane-changeable signal machine is provided with a wireless Zigbee communication module and a photosensitive detector. The controlled signal lamp group is wirelessly controlled through the illumination condition at the installation position of the variable lane signal machine, and the brightness is uniformly adjusted. The method solves the problem that different signal lamps on the same road section have different brightness; the other is a mode of needing a pull wire for communication between signal lamps. The utility model discloses well adjustting of the lighteness scheme is shown as figure 7, through unified photosensitive detection, sends for each banks with the Zigbee, realizes that luminance is unified, reduces the on-the-spot wiring.

5. Innovation of wireless manual control function: the utility model can be matched with a wireless manual controller of Baokang electronics for use. As variable lane signals are sometimes used on elevated road sections. However, it is not easy to operate the lane-changeable traffic signal on the overhead, and the maintenance cost is high. The utility model provides a variable lane semaphore can dock wireless manual remote control unit based on the Zigbee technique. Basic operation, scheme switching and the like can be carried out on the signal under the overhead condition. The overhead cost is saved, and the field operation is convenient.

6. The innovation of the network port is as follows: compared with the prior art, the lane-changeable signal machine is simpler and only provides one path of serial ports. The utility model discloses a lane semaphore provides a net gape, can dock the signal system platform at backstage. The signal assisting system platform can synthesize the conditions of the signal machine and the traffic of the lane and carry out an operation scheme of comprehensively controlling the traffic of the lane signal machine.

7. The requirements of national standard are met: the utility model discloses satisfy the requirement to A class semaphore in the national standard, for example operating temperature is between-40 deg.C-70 deg.C, and the independent yellow flashing drive, the machine case door provides functions such as manual control wicket (the semaphore itself does not choose quick-witted case).

Adopted the utility model discloses a support the device that realizes lane signal lamp control, adopted the scheme of core module independent design, consequently at the in-process of variable lane signal machine design, directly inserted the core module on the variable lane signal machine bottom plate, kept all functions (C type national standard) of original signal machine system. Meanwhile, the price cost of the signal machine is greatly reduced due to the change of the framework, the price cost of the product is reduced on the basis of ensuring the function, and the requirements of controlling signal lamps of tidal lanes and ramp are met.

In this specification, the invention has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.

Claims

1. An apparatus for supporting lane signal lamp control, comprising:

2. The device for supporting the control of the lane signal lamp according to claim 1, wherein the fault detection circuit module is a metering chip.

3. The device for supporting the control of the lane signal lamps according to claim 1, wherein the floor control chip comprises a 74HC594 chip.

4. The device for supporting the control of the lane signal lamp according to claim 1, wherein the device further comprises a network port connected with a background signal system platform.