CN210627490U

CN210627490U - Intelligent warning board

Info

Publication number: CN210627490U
Application number: CN201921574604.1U
Authority: CN
Inventors: 邵辉; 邵桂珍; 张红梅
Original assignee: Jiaze Ruian Group Co Ltd
Current assignee: Shandong Jiaze transportation facilities Co.,Ltd.
Priority date: 2019-09-21
Filing date: 2019-09-21
Publication date: 2020-05-26
Anticipated expiration: 2029-09-21

Abstract

An intelligent warning board comprises a multi-path detection mechanism and a receiving mechanism, wherein the detection mechanism respectively comprises a voltage stabilizing circuit, a laser correlation photoelectric sensor and a wireless transmitting circuit; the laser correlation photoelectric sensor of each detection mechanism, the emitting module and the receiving module thereof are respectively arranged at the left end and the right end of the wall of a building which is in front of one outlet of the road crossroads needing warning and corresponds to the rear ends of the other crossroads for a certain distance; the receiving mechanism comprises a voltage stabilizing circuit A, a wireless receiving circuit, a timing trigger, LED display screens and a sign board, wherein the LED display screens are fixedly arranged at the front end of the warning board respectively, and the warning board is fixedly arranged at a road intersection needing warning and reminding and on a road surface close to one of the outlet side ends. Every other vehicles of this novel all the other roads are close one section distance before own side's crossing, need to warn the crossing and can correspond the trend that shows, correspond the crossing vehicle through the LED display screen respectively, effectively give and be close vehicle driver suggestion.

Description

Intelligent warning board

Technical Field

The utility model relates to a monitoring suggestion equipment field, especially an intelligent warning sign.

Background

On roads in places such as factories, large wholesale markets, residential buildings and the like, the probability of various traffic accidents is high due to numerous personnel, a large number of vehicles and complex intersection. In practical situations, a speed-limiting warning board is fixedly installed at a corresponding intersection in the area to prompt the vehicle to decelerate. Because the words are used for passive prompt, the prompt effect on the driver is not obvious, and particularly, in the road crossroads of markets, factories, residential quarters and the like, when vehicles come from the left end, the right end and the like outside the own lane, the driver is not informed by the shielding of the house and the like, so that traffic accidents are possibly caused when the driver is in great care. Based on the above, it is particularly necessary to provide a warning board capable of giving a driver prompt information about the condition of a vehicle at other intersections before the vehicle reaches the intersections when the vehicle travels on roads in places such as factories, large wholesale markets, residential houses and the like.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects that no equipment has the function of effectively prompting vehicle drivers and other intersections to generate traffic accidents before vehicles approach crossroads in places such as factories, large-scale wholesale markets, residential houses and the like, the utility model provides a receiving mechanism is arranged at one exit (the exit with the least good selected sight line) of a road crossroad needing to be warned and reminded, a set of detecting mechanisms is respectively arranged at intervals after other intersections approach the exits, when each vehicle of other roads approaches the front distance of the intersection of the own party, the detecting mechanism can emit a path of wireless closing signals, and after the receiving mechanism of the intersection needing to be warned receives the wireless signals, the receiving mechanism can respectively correspondingly display the motion direction of the vehicles at the intersection through an LED display screen and effectively prompt the drivers of the vehicles approaching the intersection needing to be warned, an intelligent warning board which reduces the probability of traffic accidents.

The utility model provides a technical scheme that its technical problem adopted is:

an intelligent warning board is characterized by comprising a multi-path detection mechanism and a receiving mechanism, wherein the multi-path detection mechanism respectively comprises a voltage stabilizing circuit, a laser correlation photoelectric sensor and a wireless transmitting circuit; the emitting module and the receiving module of the laser correlation photoelectric sensor of each detection mechanism are respectively arranged at the left end and the right end of the wall of a building, which are in front of one outlet of a road crossroad needing warning and correspond to the rear ends of the other crossroads by a distance, and the emitting head of the emitting module and the receiving head of the receiving module are in a face-to-face straight line state and are not higher than the height of a vehicle; the transmitting module and the receiving module of each detection mechanism laser correlation photoelectric sensor are respectively matched with a voltage stabilizing circuit which is respectively arranged in the shell of the transmitting module and the shell of the receiving module; in each detection mechanism, the two ends of the power output of the transmitting module and the matched voltage stabilizing circuit are respectively connected through a wire, the two ends of the power output of the receiving module and the matched voltage stabilizing circuit are respectively connected through a wire, and the two ends of the power output of the receiving module and the two ends of the power input of the wireless transmitting circuit are respectively connected through wires; the receiving mechanism comprises a voltage stabilizing circuit A, a wireless receiving circuit, a timing trigger, LED display screens and a sign board, wherein the number of the LED display screens is multiple, the voltage stabilizing circuit A, the wireless receiving circuit and the timing trigger are arranged in an element box, the element box is fixedly arranged at the side end of the sign board, the LED display screens are respectively and fixedly arranged at the front end of a warning board, and the warning board is fixedly arranged at a road intersection needing warning and reminding and on a road surface close to one of the outlet side ends; the power input end of the voltage stabilizing circuit A is connected with a 220V alternating current power supply respectively, the power output end of the voltage stabilizing circuit A is connected with the power input ends of the wireless receiving circuit and the multi-path timing trigger respectively through leads, the multi-path power output end of the wireless receiving circuit is connected with the multi-path trigger signal input end of the multi-path timing trigger respectively through leads, and the power output ends of the multi-path timing trigger are connected with the positive and negative pole power input ends of the LED display screens respectively through leads.

Furthermore, the voltage stabilizing circuit of each detection mechanism and the voltage stabilizing circuit A of the receiving mechanism are AC-to-DC switching power supply modules.

Furthermore, each receiving module of the detection mechanism is provided with a relay, the 3 pins and the 2 pins of the negative power input end of the receiving module are respectively connected with the positive and negative power output and input ends of the relay through leads, and the positive power input end of the receiving module is connected with the relay control power input end.

Furthermore, the wireless transmitting circuit of each detection mechanism is a wireless transmitting circuit module of the wireless transceiving component module, and two contacts under the key of one wireless signal transmitting key of the multiple wireless transmitting circuit modules are respectively connected together through a conducting wire.

Further, the wireless receiving circuit of the receiving mechanism comprises a wireless receiving circuit module of the wireless receiving and transmitting component module, a resistor, an NPN triode and a relay, wherein the wireless receiving circuit module, the resistor, the NPN triode and the relay are connected through circuit board wiring, a positive power supply input end of the wireless receiving circuit module is connected with a positive power supply input end of the relay and a positive control power supply input end of the relay, a plurality of output ends of the wireless receiving circuit module are respectively connected with one ends of a plurality of resistors, the other ends of the plurality of resistors are respectively connected with bases of the plurality of NPN triodes, collectors of the plurality of NPN triodes are respectively connected with negative power supply input ends of the plurality of relays, and.

Further, the timing trigger of the receiving mechanism is a time relay.

Furthermore, each LED display screen of the collecting mechanism is formed by connecting a plurality of LED lamp beads in parallel to form a plurality of characters.

The utility model has the advantages that: before this novel use, multichannel detection mechanism's laser correlation photoelectric sensor, its emission module and receiving module install respectively before one of them export of road crossroad that needs warning to remind, correspond all the other a plurality of intersections rear end one section distance the building wall about both ends or two support frames about both ends, receiving mechanism installs the road crossroad that needs warning to remind, is close on the road surface of one of them export side (select the export that the sight is the least good). When vehicles at other intersections approach a distance in front of the intersection, the vehicles (including pedestrians) can block laser beams emitted by a transmitting module of a detection mechanism laser correlation photoelectric sensor, a receiving module can control a wireless transmitting circuit connected with the receiving module to emit wireless signals due to the fact that the laser beams cannot be received, after the receiving mechanism of the intersection needing to be warned receives the wireless signals, one LED display screen can be controlled to emit light for about 6 seconds, when vehicles exist at a plurality of corresponding intersections, characters displayed by the LED display screens are inconsistent, for example, the left end is displayed, the right end is displayed, the front end is displayed with the vehicles, and the like; therefore, before a vehicle approaching one of the roads of the road crossroads needs to be warned and reminded to arrive at the intersection, a driver can visually know which corresponding road has the vehicle approaching the crossroads through the waking LED display screen, thereby causing alertness to decelerate and drive, and effectively reducing the probability of traffic accidents. Based on the above, so the utility model discloses good application prospect has.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a circuit diagram of the three-way detection mechanism of the present invention.

Fig. 3 is a circuit diagram of the receiving mechanism of the present invention.

Detailed Description

As shown in fig. 1, an intelligent warning board includes three detection mechanisms and one receiving mechanism, where the three detection mechanisms respectively include a voltage stabilizing circuit 1, a laser correlation photoelectric sensor 2, and a wireless transmitting circuit 3; the laser correlation photoelectric sensor 2 of each detection mechanism is characterized in that a transmitting module 21 and a receiving module 22 of the laser correlation photoelectric sensor 2 are respectively arranged at the left end and the right end of the wall surface of a building or the left end and the right end of two supporting frames which are in front of one outlet of a road crossroad needing warning and correspond to the rear ends of the other three crossroads by a certain distance (about 50 meters), and a transmitting head of the transmitting module 21 and a receiving head of the receiving module 22 are in a face-to-face straight line state and are not higher than the height of a vehicle; the emitting module 21 and the receiving module 22 of each detection mechanism laser correlation photoelectric sensor are both matched with a voltage stabilizing circuit 1, and the voltage stabilizing circuits 1 are respectively arranged in the shells of the emitting module 21 and the receiving module 22; receiving mechanism includes voltage stabilizing circuit A4, wireless receiving circuit 5, timing trigger 6 and LED display screen 7, sign 8, LED display screen 7 is total three, voltage stabilizing circuit A4, wireless receiving circuit 5, timing trigger 6 installs in component box 9, component box 9 installs the front side lower extreme at sign 8 through screw nut, three LED display screen 7 is installed at circular warning sign 8's front end from top to bottom through screw nut respectively, warning sign 8's lower extreme welding has a stay tube 81, the welding is on a backup pad 82 that has five mounting holes under the stay tube 81, warning sign 8 passes through screw nut and installs the road crossroad that needs warning to remind through backup pad 82 trompil, be close to on the road surface of one of them export side (select the good export of sight at the least).

As shown in fig. 2, the voltage regulator circuit A1N of the three-way detection mechanism is a finished product of a dc power supply module of brand name, i.e., 220V ac to 12V dc, and the power is 100W. The laser correlation photoelectric sensor of the three-way detection mechanism is a finished product of a laser correlation photoelectric sensor with a brand hang and a model LXDJ-31, the detection distance of the laser correlation photoelectric sensor is 50 meters, the transmitting modules A3, A4 and A7 of the three-way laser correlation photoelectric sensor are provided with two

power input ends

1 and 2 pins, the receiving modules A2, A5 and A9 are provided with two

power input ends

1 and 2 pins and a high-level output end 3 pin, when an obstacle blocks the transmitting modules A3, A4 and A7 of the laser correlation photoelectric sensor of the three-way detection mechanism respectively from transmitting laser light rays received by the receiving modules A2, A5 and A9 of the laser correlation photoelectric sensor of the three-way detection mechanism, the receiving modules A2, A5 and A9 of the laser correlation photoelectric sensor of the three-way detection mechanism respectively output high levels, and the receiving modules A2, A5 and A9 of the laser correlation photoelectric sensor of the three-way detection mechanism are respectively sleeved with a relay K8 and a1, K2, K3, 3 pins and 2 pins of the negative power supply input end of the laser correlation photoelectric sensor receiving modules A2, A5 and A9 of the three-way detection mechanism are respectively connected with the positive and negative power supply output ends and the negative power supply input ends of three relays K1, K2 and K3 through leads, and 1 pin of the laser correlation photoelectric sensor receiving modules A2, A5 and A9 of the three-way detection mechanism is connected with the control power supply input ends of three relays K1, K2 and K3. The wireless transmitting circuits A15, A6 and A8 of the three-way detection mechanism are all finished wireless transmitting circuit modules of finished wireless transmitting and receiving component modules of brand STRONG SENSE/creative and model C-1201A, coding circuits are arranged in the finished wireless transmitting circuit modules, codes of the finished products A15, A6 and A8 of the three-way wireless transmitting circuit modules are consistent and are inconsistent with codes of the coding circuits of the wireless transmitting circuit modules used at other nearby crossroads needing to be monitored, the wireless signal transmitting distance is 200 meters, and two contacts under a first wireless signal transmitting key S1, two contacts under a second wireless signal transmitting key S2 of the A6 and two contacts under a third wireless signal transmitting key S3 of the A8 of the finished product A15 of the three-way wireless transmitting circuit module are connected together through leads respectively.

As shown in fig. 2, in the following, the voltage stabilizing circuits A1N used by the transmitting modules A3, a4, a7 and the receiving modules a2, a5, a9 have the same structure, and use a set of voltage stabilizing circuits respectively, and for convenience of description, the voltage stabilizing circuits used by the transmitting modules A3, a4, a7 and the receiving modules a2, a5, a9 are all expressed as A1N. In the first path of detection mechanism, two

ends

3 and 4 of a power output of a transmitting module A3 and a matched voltage stabilizing circuit A1N are respectively connected through leads, two

ends

1 and 2 of a power input of an AIN of the voltage stabilizing circuit and two poles of a 220V alternating current power supply are respectively connected through leads, two

ends

3 and 4 of a power output of a receiving module A2 and a matched voltage stabilizing circuit A1N are respectively connected through leads, two

ends

1 and 2 of a power input of the voltage stabilizing circuit A1N and two poles of a 220V alternating current power supply are respectively connected through leads, two ends of a power output of the receiving module are respectively connected with a normally open contact end of a relay K1 and a negative power input end of a relay K1 and two

ends

1 and 2 of a power input of a wireless transmitting circuit A15 through lead insertion. In the second path of detection mechanism, two

ends

3 and 4 of a power output of a transmitting module A4 and a matched voltage stabilizing circuit A1N are respectively connected through leads, two

ends

3 and 4 of a power output of a receiving module A5 and a matched voltage stabilizing circuit A1N are respectively connected through leads, two

ends

1 and 2 of a power input of the voltage stabilizing circuit A1N and two poles of a 220V alternating current power supply are respectively connected through leads, two ends of a power output of the receiving module are respectively connected with a normally open contact end of a relay K2, a negative power input end of a relay K2 and two

ends

1 and 2 of a power input of a wireless transmitting circuit A6 through. In the third detection mechanism, two

ends

3 and 4 of a power output of a transmitting module A7 and a matched voltage stabilizing circuit A1N are respectively connected through leads, two

ends

1 and 2 of a power input of an AIN (active power supply) of the voltage stabilizing circuit and two poles of a 220V alternating current power supply are respectively connected through leads, two

ends

3 and 4 of a power output of a receiving module A9 and a matched voltage stabilizing circuit A1N are respectively connected through leads, two

ends

1 and 2 of a power input of a voltage stabilizing circuit A1N and two poles of a 220V alternating current power supply are respectively connected through leads, and a power output two-end relay K3 normally-open contact end relay K3 negative power input end of the receiving module and two

ends

1 and 2 of a power input of a wireless transmitting circuit A8 are respectively connected through leads.

As shown in fig. 3, the voltage regulator circuit a10 of the receiving mechanism is a finished product of a brand bright weft ac 220V to 5V dc power supply module, and the power is 100W. The wireless receiving circuit of the receiving mechanism comprises a wireless receiving circuit module finished product A11 of a wireless receiving component module finished product with brand STRONG SENSE/creative and model C-1201A, resistors R1, R2 and R3, NPN triodes Q1, Q2 and Q3, relays K4, K5 and K6, wherein the wireless receiving circuit module finished product A11 is internally provided with a coding circuit which is consistent with codes of the coding circuits of the three wireless transmitting circuit module finished products A15, A6 and A8 corresponding to intersections and inconsistent with codes of the wireless receiving circuit module coding circuits used by other adjacent intersections needing to be monitored, so that signals are prevented from interfering with each other; the wireless receiving circuit module A11 has its positive power input terminal pin 1 connected to the positive power input terminals and positive control power input terminals of the relays K4, K5, K6, three

output terminals

4, 5, 6 of the wireless receiving circuit module A11 are connected to one ends of three resistors R1, R2, R3, the other ends of the three resistors R1, R2, R3 are connected to bases of three NPN triodes Q1, Q2, Q3, collectors of the three NPN triodes Q1, Q2, Q3 are connected to negative power input terminals of the three relays K4, K5, K6, emitters of the three NPN triodes Q1, Q2, Q3 are connected to negative control power input terminals of the three relays K4, K5, K6. The timing triggers A12, A13, A14 of the receiving mechanism are the time relay finished product of the brand Omron/ohm dragon, it has a four-digit digital display tube (capable of displaying 9999 seconds at maximum), two

power input ends

1 and 2 pins, two trigger

signal input ends

3 and 4 pins, two power output ends 6 and 7 pins (a normally open output end, a normally closed output end), a control power input end 5 pin, three setting keys (respectively a mode selection key, a shift key and an adjusting key), in application, after the three keys are respectively adjusted to set 3 and 4 pins to be triggered by the power, the time of the power supply is output by the pin 6 of the normally open power supply output end and the pin 5 of the control power supply input end, when the

pins

3 and 4 are triggered by the power supply, the pin 6 of the power supply output end can output the power supply once, and the pin 1 of the positive power supply input end of the time relay finished products A12, A13 and A14 is respectively connected with the pin 5 of the control power supply input end through a lead. The three LED display screens of the receiving mechanism are outdoor LED lamp boxes of Shanghai Xiaxiu brand, each lamp box is formed by connecting a plurality of LED lamp beads in parallel to form four characters, the characters displayed by the three LED lamp boxes are respectively that a vehicle is arranged at the left end, a vehicle is arranged at the right end, a vehicle is arranged at the front end, and the working voltage is 5V. The power input ends 1 and 2 pins of a voltage stabilizing circuit A (A10) are respectively connected with a 220V alternating-current power supply, the power output ends 3 and 4 pins of the voltage stabilizing circuit A (A10), the

pins

1 and 3 of a wireless receiving circuit power input two-end wireless receiving circuit module A11, the

pins

1 and 2 of the power input two ends of a three-way timing trigger A12, A13 and A14 are respectively connected through leads, the two normally open contact ends of three-way power output end relays K4, K5 and K6 of the wireless receiving circuit and the

pins

3 and 4 of three-way trigger signal input ends of three-way timing triggers A12, A13 and A14 are respectively connected through leads, and the

pins

6 and 2 of the power output two ends of the three-way timing triggers A12, A13 and A14 are respectively connected with the positive and negative power input ends of three-pole power supply of three-display screen LEDs 1, LED2 and LED3 through.

As shown in fig. 1, 2 and 3, before the novel use, the laser correlation photoelectric sensor 2 of the three-way detection mechanism, the emitting module 21 and the receiving module 22 thereof are respectively installed in front of one of the exits of the road crossroads needing warning and corresponding to the left and right ends of the building wall or the left and right ends of two supporting frames (50 meters distance, since the driving speed of the vehicle on the road in the market, the residential area, etc. is not very fast, it is measured by 30 kilometers per hour, and the distance passing 50 meters is about 6 seconds). The warning board 8 is installed at the crossroad needing warning and on the road surface close to one of the outlet side ends (the outlet with the least sight line is selected) through a screw nut and a hole formed in the supporting plate 82. After 220V ac power respectively enters two

ends

1 and 2 pins of power input of voltage stabilizing circuit A1N of transmitting modules A3, A4, A7 and receiving modules a2, A5 and A9, voltage stabilizing circuit A1N of transmitting modules A3, A4, A7 and receiving modules a2, A5 and A9 respectively outputs stable 12V dc power at two

ends

3 and 4 pins of power output under the action of its internal circuit and enters two ends of power input of transmitting modules A3, A4 and A7 and receiving modules a2, A5 and A9, so that transmitting modules A3, A4 and A7 and receiving modules a2, A5 and A9 are all in power-on working states. The laser beams emitted by the emitting heads of the emitting modules A3, A4 and A7 are received by the receiving heads of the receiving modules A2, A5 and A9 respectively. In practical use, when every other first intersection has a vehicle (including a pedestrian) approaching the front of the intersection at a distance of about 50 meters, the vehicle (including the pedestrian) can block the laser beam emitted by the laser correlation photoelectric sensor emitting module A3, and 3 feet of the receiving head of the receiving module A2 can output high level to enter the positive power input end of the relay K1 because the receiving head can not receive the laser beam, so that the relay K1 is electrified to attract the control power input end and the normally open contact end to be closed; because the pin 1 of the receiving module A2 is connected with the control power input end of the relay K1, the normally open contact end of the relay K1, the negative power input end are connected with the

pins

1 and 2 at the two ends of the power input end of the wireless transmitting circuit A15, and the two contacts under the key S1 of the first wireless signal transmitting button of the wireless transmitting circuit A15 are connected in advance, the wireless transmitting circuit A15 can electrically transmit a first path of wireless closing signal every time when a vehicle and a pedestrian block the laser beam transmitted by the transmitting module A3; after the vehicle drives away from the laser beam emitted by the emitting module A3, the wireless emitting circuit A15 stops emitting the wireless signal. In practical use, when vehicles (including pedestrians) at other second intersections approach to the intersection of the own intersection for a distance of about 50 meters, the vehicles (including pedestrians) can block the laser beam emitted by the laser correlation photoelectric sensor emitting module A4, and 3 pins of the receiving head of the receiving module A5 can output high level to enter the positive power input end of the relay K2 because the receiving head can not receive the laser beam, so that the relay K2 is electrified to attract the control power input end and the normally open contact end to be closed; because the pin 1 of the receiving module A5 is connected with the control power input end of the relay K2, the normally open contact end of the relay K2, the negative power input end are connected with the

pins

1 and 2 at the two ends of the power input end of the wireless transmitting circuit A6, and the two contacts under the second wireless signal transmitting key S2 key of the wireless transmitting circuit A6 are connected in advance, the wireless transmitting circuit A6 can electrically transmit a second path of wireless closing signal every time when a vehicle and a pedestrian block the laser beam transmitted by the transmitting module A4; after the vehicle drives away from the laser beam emitted by the emitting module A4, the wireless emitting circuit A6 stops emitting the wireless signal. In practical use, when vehicles (including pedestrians) at the other third intersections approach to the intersection of the third intersection for a distance of about 50 meters, the vehicles (including pedestrians) can block the laser beam emitted by the laser correlation photoelectric sensor emitting module A7, and 3 pins of the receiving head of the receiving module A9 can output high level to enter the positive power input end of the relay K3 because the receiving head cannot receive the laser beam, so that the relay K3 is electrified to attract the control power input end and the normally open contact end to be closed; because the pin 1 of the receiving module A9 is connected with the control power input end of the relay K3, the normally open contact end of the relay K3, the negative power input end are connected with the

pins

1 and 2 at the two ends of the power input end of the wireless transmitting circuit A8, and the two contacts under the key S3 of the third wireless signal transmitting button of the wireless transmitting circuit A8 are connected in advance, the wireless transmitting circuit A8 can electrically transmit a third wireless closing signal every time when a vehicle and a pedestrian block the laser beam transmitted by the transmitting module A7; after the vehicle drives away from the laser beam emitted by the emitting module A7, the wireless emitting circuit A8 stops emitting the wireless signal.

As shown in fig. 1, 2, and 3, after the 220V ac power enters the voltage regulator circuit a10 of the receiving mechanism, under the action of the internal circuit of the voltage regulator circuit a10, the

pins

3 and 4 output stable 5V dc power into the two terminals of the power input of the wireless receiving circuit module a11 and the three-way timing flip-flops a12, a13, and a14, so that the wireless receiving circuit module a11 and the three-way timing flip-flops a12, a13, and a14 are in an energized operating state; in practical use, when a vehicle on a road at the left end of the intersection needs to be warned to approach about 50 meters in front of the intersection, after the wireless transmitting circuit A15 transmits a first path of wireless closing signal, the wireless receiving circuit module A11 (working in a non-latching mode) outputs a high level at 4 feet and then the high level is subjected to voltage reduction and current limitation (higher than 0.7V) through the resistor R1 to enter the base of the NPN triode Q1 in the time when the wireless transmitting circuit A15 transmits the wireless signal, and then the NPN triode Q1 conducts the collector thereof to output a low level to enter the negative power input end of the relay K4; because the positive power supply input end and the positive control power supply input end of the relay K4 are communicated with the pin 3 of the voltage stabilizing circuit A10, and the negative control power supply input end of the relay K4 is communicated with the pin 4 of the voltage stabilizing circuit A10, the relay K4 can be electrified to close the two control power supply input ends and the two normally open contact ends of the relay K4 respectively; because the timing trigger A12 is in the working state of power-on at the moment, two trigger

signal input ends

3 and 4 pins of the timing trigger A12 are respectively connected with two normally open contact ends of the relay K4, under the action of an internal circuit of the timing trigger A12 and 6-pin power output time set by production technicians, power can be output for 6 seconds and enters a positive power input end of the first LED display screen LED1, then, within 6 seconds, the first LED display screen LED1 (a negative power input end is communicated with a2 pin of the timing trigger A12) can be powered to emit light and visually display four characters of 'vehicle is at the left end', thus, vehicles approaching one of the intersection of the warning road need to be warned to arrive at the intersection, a driver can visually know that the corresponding left end road has the vehicle to approach the intersection through the characters displayed by the eye-catching LED1 display screen, and cause warning to drive in a speed-down manner, the probability of traffic accidents is effectively reduced; after 6 seconds, the left end road vehicle basically drives away from the crossroad, the first LED display screen LED1 stops lighting, and preparation is made for the next left end road vehicle to send out a prompt signal when approaching the crossroad. In practical use, when a vehicle approaches about 50 meters in front of the intersection every time on a road at the right end of the intersection to be warned, after the wireless transmitting circuit A6 transmits a second wireless closed signal, the wireless receiving circuit module A11 (working in a non-latching mode) outputs a high level at 4 feet and then the high level is reduced voltage and limited current (higher than 0.7V) through the resistor R2 to enter the base of the NPN triode Q2 within the time that the wireless transmitting circuit A6 transmits a wireless signal, and then the NPN triode Q2 is conducted, the collector of the NPN triode Q2 outputs a low level and enters the negative power supply input end of the relay K5; because the positive power supply input end and the positive control power supply input end of the relay K5 are communicated with the pin 3 of the voltage stabilizing circuit A10, and the negative control power supply input end of the relay K5 is communicated with the pin 4 of the voltage stabilizing circuit A10, the relay K5 can be electrified to close the two control power supply input ends and the two normally open contact ends of the relay K5 respectively; because the timing trigger A13 is in the working state of power-on at the moment, two trigger

signal input ends

3 and 4 pins of the timing trigger A13 are respectively connected with two normally open contact ends of the relay K5, under the action of an internal circuit of the timing trigger A13 and 6-pin power output time set by production technicians, power can be output for 6 seconds and enters the positive power input end of the second LED display screen LED2, then, within 6 seconds, the second LED display screen LED2 (the negative power input end is communicated with the 2 pins of the timing trigger A13) can be powered to emit light and visually display four characters of 'vehicle is at the right end', thus, vehicles approaching one of the crossroads need to be warned to arrive at the crossroad, a driver can visually know that vehicles approach the crossroad corresponding to the right end through the characters displayed by the eye-catching LED2 display screen, and cause caution to drive in a speed reduction manner, the probability of traffic accidents is effectively reduced; after 6 seconds, the right-hand road vehicle basically leaves the intersection, and the second LED display screen LED2 stops emitting light to prepare for the next time when the next right-hand road vehicle approaches the intersection to send a prompt signal. In practical use, when a vehicle on a road at the front end of the intersection needs to be warned to approach about 50 meters in front of the intersection, after the wireless transmitting circuit A8 transmits a third wireless closing signal, the wireless receiving circuit module A11 (working in a non-latching mode) outputs a high level at 6 feet and then the high level is subjected to voltage reduction and current limitation (higher than 0.7V) through the resistor R3 to enter the base of the NPN triode Q3 in the time when the wireless transmitting circuit A8 transmits the wireless signal, and then the NPN triode Q3 conducts the collector thereof to output a low level to enter the negative power input end of the relay K6; because the positive power supply input end and the positive control power supply input end of the relay K6 are communicated with the pin 3 of the voltage stabilizing circuit A10, and the negative control power supply input end of the relay K6 is communicated with the pin 4 of the voltage stabilizing circuit A10, the relay K6 can be electrified to close the two control power supply input ends and the two normally open contact ends of the relay K6 respectively; because the timing trigger A14 is in the working state of power-on at the moment, two trigger

signal input ends

3 and 4 pins of the timing trigger A14 are respectively connected with two normally open contact ends of the relay K6, under the action of an internal circuit of the timing trigger A14 and 6-pin power output time set by production technicians, power can be output for 6 seconds and enters a positive power input end of the third LED display screen LED3, then, within 6 seconds, the third LED display screen LED3 (a negative power input end is communicated with 2 pins of the timing trigger A14) can be powered to emit light and visually display four characters of 'a vehicle is arranged at the front end', thus, a vehicle approaching one of the crossroads needs to be warned to arrive at the crossroad, a driver can visually know that the vehicle approaches the crossroad corresponding to the front end through the characters displayed by the eye-catching LED4 display screen, and cause warning and speed reduction, the probability of traffic accidents is effectively reduced; after 6 seconds, the front road vehicles basically leave the crossroad, the third LED display screen LED3 stops emitting light, and preparation is made for the next front road vehicle to get close to the crossroad to send out a prompt signal. Through the circuit effect, every other crossing has the vehicle to be close one section distance before the own side crossing, it is restrainted to have the vehicle (including the pedestrian) to block the laser that detection mechanism laser shot to the emitting module straight line of photoelectric sensor launches, the receiving mechanism that needs to warn the crossing receives behind the radio signal, can control one of them LED display screen luminous about 6 seconds, thus, it needs to warn the crossing before the vehicle reachs the crossing to be close, the driver is through the LED display screen word display of waking up purpose, just can directly perceivedly know which one corresponds the road and has the vehicle to be close to the crossing, thereby arouse alert and reduce speed and travel, thereby the probability that the traffic accident takes place has effectively been reduced.

In fig. 2 and 3, relays K1, K2, and K3 are DC4100 small 12V relays of the brand song. The resistances of the resistors R1, R2 and R3 are 1K; the model numbers of NPN triodes Q1, Q2 and Q3 are 9013; the relays K4, K5, K6 are DC4100 small 5V relays of the brand song.

The essential features of the invention and the advantages of the invention have been shown and described above, it being obvious to a person skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, but that it can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An intelligent warning board is characterized by comprising a multi-path detection mechanism and a receiving mechanism, wherein the multi-path detection mechanism respectively comprises a voltage stabilizing circuit, a laser correlation photoelectric sensor and a wireless transmitting circuit; the emitting module and the receiving module of the laser correlation photoelectric sensor of each detection mechanism are respectively arranged at the left end and the right end of the wall of a building, which are in front of one outlet of the road crossroads needing warning and correspond to the rear ends of the other crossroads by a distance, and the emitting head of the emitting module and the receiving head of the receiving module are in a face-to-face straight line state and are not higher than the height of a vehicle; the transmitting module and the receiving module of each detection mechanism laser correlation photoelectric sensor are respectively matched with a voltage stabilizing circuit which is respectively arranged in the shell of the transmitting module and the shell of the receiving module; in each detection mechanism, the two ends of the power output of the transmitting module and the matched voltage stabilizing circuit are respectively connected through a wire, the two ends of the power output of the receiving module and the matched voltage stabilizing circuit are respectively connected through a wire, and the two ends of the power output of the receiving module and the two ends of the power input of the wireless transmitting circuit are respectively connected through wires; the receiving mechanism comprises a voltage stabilizing circuit A, a wireless receiving circuit, a timing trigger, LED display screens and a sign board, wherein the number of the LED display screens is multiple, the voltage stabilizing circuit A, the wireless receiving circuit and the timing trigger are arranged in an element box, the element box is fixedly arranged at the side end of the sign board, the LED display screens are respectively and fixedly arranged at the front end of a warning board, and the warning board is fixedly arranged at a road intersection needing warning and reminding and on a road surface close to one of the outlet side ends; the power input end of the voltage stabilizing circuit A is connected with a 220V alternating current power supply respectively, the power output end of the voltage stabilizing circuit A is connected with the power input ends of the wireless receiving circuit and the multi-path timing trigger respectively through leads, the multi-path power output end of the wireless receiving circuit is connected with the multi-path trigger signal input end of the multi-path timing trigger respectively through leads, and the power output ends of the multi-path timing trigger are connected with the positive and negative pole power input ends of the LED display screens respectively through leads.

2. The intelligent warning board of claim 1, wherein the voltage regulator circuit of each detection mechanism and the voltage regulator circuit A of the receiving mechanism are AC-to-DC switching power supply modules.

3. An intelligent warning board as claimed in claim 1, wherein each detection mechanism has a receiving module provided with a relay, the receiving module has 3 pins and 2 pins of negative power input terminal and the output terminals of the relay are respectively connected via wires, and the positive power input terminal of the receiving module is connected with the input terminal of the relay control power supply.

4. The intelligent warning board of claim 1, wherein the wireless transmitting circuit of each detecting mechanism is a wireless transmitting circuit module of a wireless transceiver module, and two contacts under a key of one wireless signal transmitting key of the multi-path wireless transmitting circuit module are respectively connected together through a wire.

5. An intelligent warning board according to claim 1, wherein the wireless receiving circuit of the receiving mechanism comprises a wireless receiving circuit module of the wireless transceiver module, a resistor, an NPN transistor, and a relay, which are connected by wiring of a circuit board, a positive power input terminal of the wireless receiving circuit module is connected to a positive power input terminal of the relay and a positive control power input terminal, a plurality of output terminals of the wireless receiving circuit module are respectively connected to one ends of a plurality of resistors, the other ends of the plurality of resistors are respectively connected to bases of the plurality of NPN transistors, collectors of the plurality of NPN transistors are respectively connected to negative power inputs of the plurality of relays, and emitters of the plurality of NPN transistors are connected to negative control power inputs of the plurality of relays.

6. An intelligent warning sign according to claim 1, wherein the timing trigger of the receiving mechanism is a time relay.

7. The intelligent warning board of claim 1, wherein each LED display screen of the receiving mechanism is composed of a plurality of LED lamp beads connected in parallel to form a plurality of characters.