CN2224123Y - Vehicle slow speed warning device - Google Patents

Abstract

The utility model provides a vehicle warning device at a slow speed, when the vehicle is marching at a slow speed, can warn the rear to come with the light automatically. This warning device includes: a group of speed sensors, a group of microcomputer power converters connected with the speed sensors in series, and two groups of warning lamps which can be independently assembled or integrally assembled with the third brake lamp. When the speed of the vehicle is lower than the set value, the converter outputs power to turn on one of the two warning lamps to regulate the speed of the vehicle in the early time.

Description

Vehicle slow speed warning device

The utility model relates to a warning device, in particular to a vehicle slow-speed and parking warning device capable of providing an automatic lamp warning effect when a running vehicle is running at a slow speed or parked.

Generally, vehicles often go fast and sometimes slow due to road conditions while driving, and even stop; in such situations, when vehicles follow each other and keep a certain distance from the vehicle in front, the driver can easily judge the pace based on personal vision and maintain a safe distance , and less security concerns. However, if the vehicle coming from the rear does not follow each other with the vehicle in front, but has a considerable distance, when the vehicle in front encounters a situation and needs to change from the original high speed to a slow speed or stop, the driver behind will not be able to detect it at a long distance. The vehicle in front has slowed down due to the situation in front (generally, when the vehicle decelerates, the brake pedal is stepped on, so there is a brake light warning, but there is no warning light warning when driving at a slow speed), and, because the sight of the driver of the vehicle behind is different from the front The cars are parallel and in a straight line, so whether the distance between the two cars is approaching rapidly cannot be detected at a long distance, and it is often necessary to wait until a short distance to feel that the car is rapidly approaching the car in front. When the car in front is detected to be approaching fast, because the car in front is driving at a slow speed, the maintained speed does not have any setting to warn the car coming from behind, so the driver of the car coming from behind is less alert and easily reacts Not as good as the accident of chasing the car in front. Of course, when the driver of the front car finds that the situation must be slowed down or even stopped during fast driving, he must step on the brake lever. It does not follow the brake lever, but only knows that the car in front has brakes. As for the brakes of the car in front to warn Chang to slow down or stop, the car behind cannot judge.

The purpose of this utility model is to overcome the shortcomings of the existing vehicle warning devices and provide an improved vehicle slow-speed warning device, that is, a vehicle can automatically display two easily distinguishable warning lights when traveling at a slow speed within a certain range , so as to remind the following vehicles to make emergency preparations in advance to increase driving safety.

One of the characteristics of the utility model is that a group of speed sensors are connected in series with a group of microcomputer power converters, and the microcomputer power converters are used to set appropriate values according to the size of the vehicle tires to drive at the speed sensed by the speed sensors. How many pulses are compared, and the compared result is transmitted to a light switch, which is independent from the original light switch of the vehicle and connected to the main switch of the vehicle, for example, when the compared vehicle speed message is parking The blue light is turned on between 25 kilometers and the yellow light is turned on between 25 kilometers and 55 kilometers, so that the vehicle in progress can automatically display the warning of the speed of the vehicle.

The second feature of the utility model is that the microcomputer power converter further provides a slow-moving setting value, that is, when the speed of the vehicle is accelerated from a slow speed (such as adding about 2 kilometers) or when the speed of the vehicle is decelerating from a fast speed (such as reducing about 2 kilometers) In this way, the vehicle accelerates from parking to the preset 25 kilometers with a blue light for warning, and when it exceeds 2 kilometers (ie 27) kilometers after the 25-kilometer message range, the blue light stops warning and the yellow light starts warning; on the contrary, the vehicle speed changes from During the deceleration of 2 kilometers after the original expressway 100 kilometers is reduced to 55 kilometers, the yellow light will warn when the speed is reduced to 53 kilometers. The blue light warning starts.

The utility model has the advantages of:

1. Improve the shortcoming that the vehicle itself does not have any warning when the vehicle is running at a slow speed, especially when the driver is visually fatigued after driving for a long time. Within the range, you can clearly know the driving status of the vehicle in front, whether it is fast, medium, slow or stopped, and you can have more time to react, so as to avoid fatigue or line of sight parallel to the vehicle in front The relationship cannot visually detect the speed of the vehicle in front, resulting in the danger of misjudgment.

2. Improve the shortcoming of the general warning of the current vehicle brake lights, because the utility model is assembled on the left and right sides of the third brake lights, and the circuits are independent, so when the brake lights are on, if the vehicle speed is within the range set by the utility model, the two lights will It can warn at the same time, so it can clearly ask the driver of the car coming from behind to clearly know whether the front car is braking at a high speed or braking at a slow speed within a long-distance visible range, and can take necessary measures earlier.

3. Improving the driver's instant judgment ability. Since the line of sight of the driver of the rear car is straight and parallel to the car in front, it is impossible to immediately judge the speed of the car in front at the moment of sight contact, especially at a turning point. After a bend, when decelerating or stopping due to a situation, the driver behind the car behind is hindered by obstacles and cannot see the situation of the car in front. It is impossible to know the state of the vehicle in front immediately; and the utility model is to provide the driver of the car coming from behind to know the state of the vehicle in front according to the color of the lamp in a faster and earlier time, and emergency measures should be taken.

Fig. 1 is a block diagram of the utility model.

Fig. 2 is the program block flowchart of microcomputer 16C54 of the present utility model.

Figures 3A and 3B are schematic diagrams of warning lights for setting the vehicle speed comparison message in the slow upward and fast downward directions of the utility model

Fig. 4 is the circuit diagram of the utility model.

Fig. 5 is a three-dimensional appearance view of the utility model assembled with the third brake light.

The labels in the figure are:

Vehicle speed sensor 1, power converter 2, dip switch 20,

Slow motion setting device 21, power supply 201·202, lamp group 40,

Blue light 401, yellow light 402, brake light 403.

As shown in Figure 1, the utility model includes a set of vehicle speed sensor 1, microcomputer power converter 2 and lamp group 40, wherein the vehicle speed sensor 1 mainly senses the speed of the vehicle along with the speed of the vehicle. The speed measuring method of the utility model utilizes the formula of speed=distance/time, and is connected to the automobile drive shaft with a sensor (Sensor). When the drive shaft rotates one circle, the speed measuring sensor (Sensor) will send out a square wave; Fig. 2 is the program block flow chart of the microcomputer power converter 2 of the present utility model, and every rotation of the transmission shaft is exactly each square wave, and the actual walking distance of the measured tire is about 1.5 meters, and now the microcomputer power converter 2 The internal microcomputer 16C54 can measure the time of each square wave, and obtain the speed at that time by the above formula, and then cooperate with the speed comparison message set by the dip switch 20, and can output the determined message very accurately, that is, set the speed The message range is set to be a blue light warning within the range of 0 km to 25 km; and a yellow light warning within the range of 25 km to 55 km; the slow motion setter 21 of the microcomputer 16C54 is used to set the positive and negative values, as shown in Figure 3A As shown, when the speed of the vehicle accelerates from a slow speed up to within the range of 25 kilometers of the vehicle speed message, a blue light warns; and after 25 kilometers plus 2 kilometers to 27 kilometers, the blue light message stops and the yellow light turns on, that is, the vehicle speed accelerates In the range from 25 kilometers to 55 kilometers, the yellow light is used to warn; when the vehicle continues to accelerate to 55 kilometers plus 2 kilometers, the yellow light message will stop, that is, there will be no signal after the speed exceeds 55 kilometers. On the contrary, as shown in Figure 3B, when the speed of the vehicle is reduced from 100 kilometers at high speed to 2 kilometers (i.e. 53 kilometers) after the information range of 55 kilometers, the yellow light starts to warn. Once the speed continues to drop to 2 kilometers after the information range of 25 kilometers (i.e. 23 kilometers), the yellow light warning will be terminated, and the blue light will be turned on for warning. The purpose of setting such positive and negative values is to prevent the warning light from jumping back and forth due to the too sensitive switching power supply.

Fig. 4 is a circuit diagram of the utility model. As shown in Figure 4, the utility model basically uses the vehicle speed sensor 1 to compare how fast the pulsation generated with the vehicle speed is compared with the value of the vehicle speed set in the converter 2. When the vehicle speed reaches the specified When the value is set, the converter 2, that is, the output power supply 201, 202, turns on one of the two sets of warning lights (blue light and yellow light) to indicate the speed of the vehicle.

Fig. 5 is the light group 40 combined with the third brake light for the implementation of the present utility model, as shown in Fig. 4 and Fig. 5, when the power converter 2 outputs the power 201, the blue light 401 of the light group 40 is turned on , and if the output power supply 202 is turned on, the yellow light 402 is turned on; when the brakes are stepped on, the brake light 403 is turned on, so the utility model has the characteristics of combining the third brake light and the slow speed warning light.

As mentioned above, the utility model divides the maximum speed per hour of the expressway into high, medium and low three driving distinctions. At high speed, the utility model does not perform any warning action; Yellow light is used for warning; when the speed is low (25 kilometers to stop), blue light is used for warning; in this way, the two-color light that is simple and easy to distinguish divides the vehicle speed into two sections for warning, so that the driver coming from behind can be correct at a long distance. Know the speed of the vehicle in front, and match the speed as soon as possible, so as to avoid the excessive speed of approaching the vehicle in front, which will cause the risk of collision. 2 kilometers after the message range of 25 kilometers (that is, 57 kilometers), the blue light warning stops, and the yellow light warning starts; continue to accelerate to 2 kilometers after the 55 kilometers message range (that is, 27 kilometers), then the yellow light The warning stops; on the contrary, the speed of the vehicle decelerates from the original high speed 100 kilometers to 2 kilometers after the 55 kilometers message range, and the yellow light will give a warning when it is reduced to 53 kilometers. If it continues to slow down to 2 kilometers after the 25 kilometers message range, that is, 23 Kilometers, then the yellow light warning stops, and the blue light warning turns on until the car stops (including parking).

Basically, the above-mentioned yellow lights are also used in current vehicles, but only in special situations, such as double flashing yellow lights and direction lights, and the double yellow lights are to turn on the switch, but the utility model is purely based on speed automatic There is no need to make any warning switch to warn the yellow light, and the device position is around the third brake light (as shown in Figure 2), which can be independent or assembled with the third brake light, and the light signal will not Flickering, therefore, the utility model adopts yellow light as the warning of the speed of a vehicle in 25-55 kilometers in vehicle running, and this is the most ideal light signal representation under the consensus of " noticing " that the driver has all had at present. As far as the blue light is concerned, the vehicle is not in use nowadays, so it is very distinct from the various warnings of the brake light and the aforementioned yellow light, and it is easy to distinguish. In particular, it can help the driver to make an instant judgment. For example, at a corner, when the car in front has passed the corner and must stop due to a situation, the driver of the car coming from behind cannot see the car in front due to obstacles in the corner , when turning a corner, the line of sight is in a straight-line relationship with the vehicle in front, even if the brake light of the vehicle in front is found to be on, it is impossible to immediately judge whether it is parking or slowing down slightly during travel, so it is easy to cause a collision; therefore, the utility model The blue light is used as a warning of slow speed and parking to provide a clear warning function, so that the driver of the rear car can use the blue light of the utility model to warn at the moment when the line of sight contacts the vehicle in front after turning. Quickly and correctly know that the vehicle in front is moving at a slow speed, so there is more time to take necessary measures.

The above is only a preferred embodiment of the utility model, and all modifications and changes according to the utility model should still be included in the scope of the utility model patent application.

Claims (6)

1. A vehicle slow-speed warning device, comprising a vehicle speed sensor (1), a microcomputer power converter (2) and a light set (40), characterized in that: the light set consists of a blue light (401), a yellow light (402) , brake light (403); the vehicle speed sensor (1) is combined in series with the microcomputer power converter (2), and the microcomputer power converter (2) sets an appropriate value according to the size of the car tire, and the speed sensor (1) senses Compared with the vehicle speed, when the vehicle speed reaches the set value, the converter (2), that is, the output power supply (201, 202), turns on one of the two sets of warning lights (401), (402). 2. The vehicle slow-speed warning device according to claim 1, characterized in that: the microcomputer power converter (2) has a dip switch (20). 3. The vehicle slow speed warning device according to claim 1, characterized in that: the vehicle speed information range is set to be a blue light warning within the range of 0-25 kilometers, and a yellow light warning within the range of 25-55 kilometers. 4. The vehicle slow speed warning device according to claim 1, characterized in that: the microcomputer power converter (2) has a slow motion setting device (21). 5. The vehicle slow-speed warning device according to claim 1, characterized in that the two warning lights (401), (402) and the third brake light (403) are assembled separately. 6. The vehicle slow-speed warning device according to claim 1, characterized in that: the two warning lights (401), (402) are assembled with the third brake light (403).

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