Radio tire pressure and tire temperature monitoring system
Technical field
The present invention relates to a kind of monitoring system, control pressure of tire and tire temperature situation but a kind of steerman at high speed that provides is be provided, with a kind of radio tire pressure and the tire temperature monitoring system of guaranteeing passenger safety in driver and the car.
Background technology
The general vehicle, automobile possesses safe, comfortable and convenient, adds the raising of compatriots' Economic Force, makes domestic automobile quantity grow with each passing day.For the vast consumption group that has automobile, it is of paramount importance can safety reaching the destination, and influence the factor of traffic safety, mental status when driving a vehicle except steerman, outside careful during driving, each member of automobile itself is still arranged (as tire, braking system ... Deng) whether can normally bring into play its function, wherein with tire, except the tyre surface lines whether enough dark, tire pressure and tire temperature all can have influence on the safety of travelling, wherein tire pressure is too high or not enough, the damage of tire is caused in the capital, has only tire pressure when standard value, and the premium properties of tire just can show.Tire pressure is too high, though the resistance of rolling is little, tire and contact area of ground reduce, and causes the wearing and tearing of crown central authorities easily, also because of surface of tyre tension force enlarges, damages easily when being subjected to external force simultaneously, also causes be full of cracks easily.And tire pressure is when not enough, and the resistance of rolling is big, and consumption increase, crown two lateral wearings increase relatively, easily make the tire temperature rise make tyre surface or carcass plies delamination simultaneously.
And during automotive operation, between the inside tires cord and surface of tyre can make the temperature build-up of tire with ground-surface continuous friction, too high the causing easily of tire temperature blown out.
In the case, announce " improved device of tyre pressure alarm " patent case No. 186905 before known, promptly proposed to detect pressure of tire and whether crossed low or too high invention; Because its arrangement for detecting is inserted on the valve of tire on the car, every group of detecting structure all must comprise detection transmission circuit and power supply device, and the tire number is many more, and it is many that cost is increased, and the problem of being destroyed easily or stealing.And it there is no the setting of detecting tire temperature, and real inadequate for the detection of tire, above problem is demanded urgently solving.
Summary of the invention
Main purpose of the present invention provides a kind of radio tire pressure and tire temperature monitoring system, simple structure and with low cost not only, and also in the closely detecting mode of radio resonance, which kind of state the detecting pressure of tire is in, and allows steerman be easy to control tire state.
A further object of the present invention is, according to this kind radio tire pressure of the present invention and tire temperature monitoring system, further provides the setting of detecting tyre temperature, with guarantee to drive and car in passenger's safety.Further monitoring system is installed in the spoke surface of tire steel (aluminium) circle, can guarantees safety, and improve the particularity that detects,
The present invention realizes by the following technical solutions.
A kind of radio tire pressure and tire temperature monitoring system, mainly comprise a wireless monitor conveyer and a digital received read out instrument, the wireless monitor conveyer carries out sensing to the pressure in the tire and temperature after a resonance type antenna is sent to the digital received read out instrument shows in inside tires.
Aforesaid radio tire pressure and tire temperature monitoring system, wherein said wireless monitor conveyer comprises:
One pressure inductor is in order to induction tire internal pressure;
One Water Temperature Sensor is in order to the induction tire internal temperature;
One differential amplifier in order to the connection pressure inductor, and will be sent to microcontroller after will amplifying from the signal that pressure inductor is obtained;
One attenuator in order to the connection Water Temperature Sensor, and will be sent to microcontroller after the signal that Water Temperature Sensor is obtained is handled;
One microcontroller, the temperature signal that transmits in order to pressure signal that differential amplifier is transmitted and attenuator carries out calculation process;
One voltage regulator is connected to microcontroller;
One source switch is connected to microcontroller and power supply (battery);
One current source is connected to pressure inductor and source switch;
One centrifugal switch is connected to microcontroller and power supply (battery), in order to when the speed of a motor vehicle is higher than certain limit, automatically activating monitoring system, and SELF CL monitoring system when being lower than this value range and surpassing certain hour;
One transmitter is connected to microcontroller, so that pressure signal and temperature signal that the microcontroller calculation process is finished send;
One filter connects transmitter, with the signal filtering that transmitter is sent;
One antenna connects filter, and pressure signal and temperature signal after filter is filtered are sent to the digital received read out instrument with the resonance pattern.
Aforesaid radio tire pressure and tire temperature monitoring system, described digital received read out instrument, be provided with a LCD panel, the one side also is provided with temperature display button, a pressure display button, a LCD backlight key, a setting key and Warning light, be shown in the LCD panel with pressure signal that antenna is sent and temperature signal in the mode of numeric display, and when tire pressure and tire temperature mal, warn immediately.
Aforesaid radio tire pressure and tire temperature monitoring system, described wireless monitor conveyer, be installed in the cap, the base of this cap has the radian that is equivalent to the tyre rim periphery, its cap both sides respectively are provided with a perforation for wearing steel bar, it is installed on the outer spoke surface of wheel rim, and near the tire tube valve position, and its upper end face is provided with an air extractor vent for ease of detected temperatures and pressure of tire.
The present invention compared with prior art has remarkable advantages and beneficial effect.
From the above as can be known, this kind radio tire pressure of the present invention and tire temperature monitoring system, to be installed in the outer spoke surface of wheel rim after the housing packing, can guarantee the safety used by it, and pressure and temperature regime that can the complete detection inside tires, simple structure and with low cost not only, and, can provide more accurate numerical value with the closely detection mode that radio resonates, so that steerman fills part a grasp tire pressure and a tire temperature situation, guarantee the safety of driving, it has improved effect really.
Description of drawings
Fig. 1: be schematic view of the present invention;
Fig. 2: be wireless monitor conveyer square diagrammatic sketch of the present invention;
Fig. 3: be digital received read out instrument plan view of the present invention;
Fig. 4: be of the present invention group of three-dimensional diagrammatic sketch of cap of establishing the wireless monitor conveyer;
Fig. 5: the elevation profile diagrammatic sketch that is mounted on steel ring for the present invention;
Fig. 6: the plan view that is mounted on steel ring for the present invention.
The specific embodiment
Below in conjunction with accompanying drawing embodiment is elaborated;
This kind radio tire pressure of the present invention and tire temperature monitoring system, as shown in Figure 1, it comprises that mainly a wireless monitor conveyer 1 and that is installed on the tyre rim can be for the digital received read out instrument 2 that is installed in the car body operator's saddle; Please refer to shown in Figure 2ly, this wireless monitor conveyer 1 further comprises:
One pressure inductor is in order to induction tire internal pressure;
One Water Temperature Sensor is in order to the induction tire internal temperature;
One differential amplifier in order to the connection pressure inductor, and will be sent to microcontroller after will amplifying from the signal that pressure inductor is obtained;
One attenuator in order to the connection Water Temperature Sensor, and will be sent to microcontroller after the signal that Water Temperature Sensor is obtained is handled;
One microcontroller, the temperature signal that transmits in order to pressure signal that differential amplifier is transmitted and attenuator carries out calculation process;
One voltage regulator is connected to microcontroller;
One source switch is connected to microcontroller and power supply (battery);
One current source is connected to pressure inductor and source switch;
One centrifugal switch, be connected to microcontroller and power supply (battery), automatically activate monitoring system when being higher than certain limit (for example speed per hour 10-20 kilometer) when the speed of a motor vehicle, and SELF CL monitoring system when being lower than this value range and surpassing certain hour (for example about 5 minutes);
One transmitter is connected to microcontroller, so that pressure signal and temperature signal that the microcontroller calculation process is finished send;
One filter connects transmitter, with the signal filtering that transmitter is sent;
One antenna 20 connects filter, makes pressure signal and temperature signal after the microcontroller calculation process be sent to digital received read out instrument 2 with the resonance pattern after filtering.
This digital received read out instrument 2, as shown in Figure 3, in a LCD panel 31 wherein is set, the one side also is provided with temperature display button 32, a pressure display button 33, a LCD backlight key 34, a setting key 35 and Warning light 36, is shown in LCD panel 31 with pressure signal that antenna is sent and temperature signal in the mode of numeric display.
See also shown in Figure 4, the present invention also is provided with a cap 4, the base 41 of this cap has the radian that is equivalent to the tyre rim periphery, its cap both sides respectively are provided with a perforation 42,43 for wearing steel bar 44, it is installed on the outer spoke surface of wheel rim 5 as shown in Figure 5, and as shown in Figure 6 near tire tube valve 51 positions.And its upper end face is provided with an air extractor vent 45, so that as shown in Figure 5 after tire 52 installations, carries out the sensing of pressure of tire and tire temperature with pressure inductor and Water Temperature Sensor.
Action is as follows during use:
After running car surpassed 10 to 20 kilometers of speed per hours, the centrifugal switch of radio tire pressure monitoring system was activated;
After running car surpasses 10 to 20 kilometers of speed per hours, three signals of emission continuously when standby mode activates, about 40 seconds of each interval;
Every 6 seconds at interval, measure pressure, temperature in the running car;
Every 5 to 10 minutes at interval, launch five times signal in the running car, transmit real-time pressure and temperature to the digital received telltale that is positioned at operator's compartment;
If when pressure or temperature mal, launch signal at once ten times in the running car, all at interval about 40 seconds at every turn, and repeated above-mentioned action once every five minutes;
Stop to wait for surpass 5 minutes, centrifugal switch is promptly closed system, and system is returned to standby mode, saves battery and power consumption, prolongs battery service life.
It should be noted that at last: above embodiment only in order to the explanation the present invention and and unrestricted technical scheme described in the invention; Therefore, although this specification sheets has been described in detail the present invention with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the present invention; And all do not break away from the technical scheme and the improvement thereof of the spirit and scope of the present invention, and it all should be encompassed in the middle of the claim scope of the present invention.