CN2060747U

CN2060747U - Safety monitor of motor vehicles

Info

Publication number: CN2060747U
Application number: CN 89205971
Authority: CN
Inventors: 王浩; 李复生
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-09-08
Filing date: 1989-09-08
Publication date: 1990-08-22

Abstract

The utility model discloses a safety monitor of motor vehicles which is provided with a safe lamp monitoring circuit, a power source monitoring circuit, a tripping judging circuit and an alarm indication circuit. The monitor not only can monitor the safe lamp of the vehicle at the condition that the power is communicated, but also can monitor the safe lamp of the vehicle at the condition that the power is not communicated. The monitor can simultaneously make use of the full state monitoring approach of the safe lamp to judge the tripping phenomenon of the trailer and avoid the traffic accident. The dynamic monitoring circuit of the power of the utility model is characterized in that the displayed lower limit and the compared level difference can be adjusted and are convenient to adjust and accurate to spot. The safety monitor of motor vehicles can rapidly judge the intact condition of the power. The utility model has small size and is convenient in use and arrange and is safe to operate.

Description

Safety monitor of motor vehicles

The utility model relates to a kind of self-propelled vehicle safety monitoring instrument, promptly relate to a kind of can be to the safety lamp system of self-propelled vehicle, towed vehicle hook system and power-supply system are carried out the instrument of condition monitoring in dynamic and static process.

The self-propelled vehicle safety lamp is meant stoplight stop lamp, taillight, and indicator lamps such as left and right sides steering indicating light, the safety lamp system comprises bulb, connector, on line, parts such as switch.The safety lamp fault may occur in the galvanization, also may occur in the no power process.At present, the monitoring of safety lamp is only carried out in galvanization, and the while can be implemented the technology discovery as yet at present of monitoring safety lamp in cold process.But navigating mate then can cause traffic accident if can not in time find the safety lamp fault.

To towed vehicle hook dropout fault, in a single day navigating mate often is difficult for discovery, but threads off, then traffic accident can take place, and at present towed vehicle dropout fault not had corresponding monitoring means.

The good and sound situation of power sources of motor vehicle system is to guarantee that self-propelled vehicle normally moves, one of key condition of especially long-distance driving, and when power line voltage was lower than rated voltage, accumulator jar must charge or repair; When charging valtage is higher than assigned voltage, the accumulator jar life-span there is obvious damage.At present the power sources of motor vehicle system is carried out the also not discovery of product of dynamic monitoring.

The purpose of this utility model is to avoid the shortcoming of above-mentioned prior art, can the safety lamp fault of self-propelled vehicle be pulled the dropout fault and under current intelligence, power status be implemented monitoring and provide a kind of, the instrument of reporting to the police and indicating is with the generation that avoids traffic accident.

The utility model is to adopt following measure to realize its purpose.

By shell, front and back panel and the self-propelled vehicle safety monitoring instrument of inserting the PC board composition in the shell are furnished with the safety lamp observation circuit, electric source monitoring circuit, dropout decision circuitry and warning indicating circuit on its PC board.The circuit series that base unit circuit in the safety lamp observation circuit is made up of bulb, coil, resistance and be formed in parallel by the dry-reed tube that opened and closed by coil magnetic field control, the circuit series that resistance is formed.Electric source monitoring circuit is to be made of level display driver circuit 1405, its divider resistance ground terminal is encased inside an adjustable reference resistance, and the dropout decision circuitry is to be made of AND circuit, the input end of this AND circuit respectively with towed vehicle safety lamp observation circuit each as a result the signal output part of mouth and brake pressure sensor link.

The drawing of accompanying drawing is described as follows:

Fig. 1 is a structural representation of the present utility model, and as Figure of abstract;

Fig. 2 is a work relationship block diagram of the present utility model;

Fig. 3 is a safety lamp observation circuit schematic diagram (1/2);

Fig. 4 is the logic relation picture of circuit shown in Figure 3;

Fig. 5 is the base unit circuit diagram in the safety lamp observation circuit;

Fig. 6 is that level display driver circuit 1405 connects figure,

Fig. 7 is a dropout decision circuitry schematic diagram.

Below in conjunction with accompanying drawing the utility model is further described.

Present embodiment is made up of with vertical PC board (8) shell (1), front and back panel (12) (5), connector (4), display device (9), switch member (11), annunciator (10) and the horizontal PC board (2) inserted in the shell (1).Safety lamp monitoring integration module (6) is housed, power supply monitoring integrated package (3), the indication integrated package (7) etc. of reporting to the police on the horizontal PC board (2).During use, this monitor is settled gone up in place earlier, with connector and line this monitor and monitoring target are linked up again.Open the monitor switch, in case the monitoring target et out of order, this instrument can be made the reaction that indication is reported to the police immediately.

Base unit circuit in the safety lamp monitoring integration module is by resistance (R ₀₁), the circuit series that coil (L), bulb (T) are formed and by resistance (R ₀₂), the circuit series that the dry-reed tube (J) that opened and closed by the control of coil (L) magnetic field is formed is formed in parallel.Under cold state, promptly the K access failure is very little by the cold resistance of bulb (T), if bulb (T) trouble free, then A ₁Point is low level; If bulb (T) has fault, then A ₁Point is for high level, and under "on" position, when promptly K connected, because the conducting electric current forms magnetic field in coil (L), if dry-reed tube (J) adhesive in magnetic field was bulb (T) trouble free, then A ₂Point is low level; If bulb (T) has fault, then A ₂Point is high level.Because the symmetry of self-propelled vehicle safety lamp, thus 1-4 the circuit of forming by two base unit circuit that are each other or concern comprised in each safety lamp monitoring integration module, and each circuit is by a gating signal M ₁The result output or the no power state result down that control under the "on" position export.Referring to accompanying drawing 3 and accompanying drawing 4.Fig. 3 is the monitoring of safety lamp shown in present embodiment integration module IC ₁Half of schematic circuit diagram, second half is identical with it, is output as Q ₀₂Module I C ₂, IC ₃, IC ₄With IC ₁Form identically, output is respectively Q ₀₃, Q ₀₄, Q ₀₅, Q ₀₆, Q ₀₇, Q ₀₈, IC wherein ₁, IC ₂Bear main car safety lamp monitoring, IC ₃, IC ₄Bear the monitoring of towed vehicle safety lamp.

Because the various indicator lamps of self-propelled vehicle generally are to form the loop by bonding ground connection, and the hook of towed vehicle is its bonding connected to chassis path, so in a single day towed vehicle is threaded off, then its bonding grounded circuit breaks; Simultaneously, the brake gas circuit of towed vehicle also will be broken.The utility model utilizes this two factors to judge the dropout fault just.The dropout decision circuitry of present embodiment is by an AND circuit (IC ₈) constitute this AND circuit (IC ₈) input end respectively with towed vehicle safety lamp observation circuit (IC ₃, IC ₄) each mouth (Q as a result ₀₅, Q ₀₆, Q ₀₇, Q ₀₈) and the signal output part (Q of brake pressure sensor ₀₉) link mouth (Q ₁₀) then drive a light-emitting diode (D ₁₁₈) work.

Power sources of motor vehicle has following several situation under current intelligence:

0.75U ₀Voltage below level, accumulator jar are answered overhaul or are scrapped;

0.875U ₀Undertension, accumulator jar need charge or keep in repair;

U ₀Normal voltage, the accumulator jar nominal voltage;

1.125U ₀Charge normal voltage;

1.25U ₀Over voltage.

The power supply monitoring integrated package has adopted general-duty level display driver circuit 1405, but this circuit is to show the Pyatyi comparative voltage of comparative voltage since 0, and its demonstration lower limit is non-adjustable.The utility model is encased inside an adjustable reference resistance (W with 1405 divider resistance ground terminal ₀₁), make 1405 to expand to showing lower limit and more differential all adjustable power sense circuit.Power line voltage is by R _I, R _IIAfter the dividing potential drop by the input of 1405 tripod, after the amplification of 1405 internal circuits by inner Pyatyi comparator drives D ₁-D ₅Diode displaying, the adjustable reference resistance that is encased inside is connected to 1405 the 7th pin.

The utlity model has vehicle safety lamp is not only monitored when switching on, the characteristics that also can when no power, monitor, application safety lamp total state (under energising or the no power) monitoring principle is judged towed vehicle dropout phenomenon simultaneously, avoids the possibility of accident. Power supply dynamic monitoring circuit of the present utility model has the lower limit of demonstration and more differential adjustable characteristics, and easy to adjust, and doors is accurate, can judge rapidly the intact situation of power sources of motor vehicle. The utility model volume is little, and is easy to install and use, safe and reliable.

Claims

1, a kind of self-propelled vehicle safety monitoring instrument, it is by shell, and front and back panel and the PC board of inserting in the shell are formed, and it is characterized in that being furnished with on the PC board safety lamp observation circuit, electric source monitoring circuit, dropout decision circuitry and warning indicating circuit.

2, self-propelled vehicle safety monitoring instrument according to claim 1 is characterized in that circuit series that the base unit circuit in the described safety lamp observation circuit is made up of bulb, coil, resistance and is formed in parallel by the dry-reed tube that opened and closed by coil magnetic field control, the circuit series that resistance is formed.

3, self-propelled vehicle safety monitoring instrument according to claim 1 is characterized in that described electric source monitoring circuit is to be made of level display driver circuit 1405, and its divider resistance ground terminal is encased inside an adjustable reference resistance.

4, self-propelled vehicle safety monitoring instrument according to claim 1, it is characterized in that described dropout decision circuitry is to be made of AND circuit, the input end of this AND circuit respectively with towed vehicle safety lamp observation circuit each as a result the signal output part of mouth and brake pressure sensor link.