Abstract: A method is disclosed for locating a plurality of tire condition sensing apparatuses mounted on a vehicle. At first, all of the antennas in the vehicle are maintained at an activation status for receiving and decoding a signal transmitted from one of tire condition sensing apparatuses of the tired, and a signal intensity is obtained. When a tire condition sensing apparatus is assured to continuously emit the signal, the antennas are alternatively turned on an off so as to obtain a plurality of signal intensity changes, and the tire condition sensing apparatus is located on the tire to which the antenna producing the maximum value of the signal intensity changes is corresponding.

Abstract: A tire monitoring system with a wireless setting capability includes a wireless controller and a plurality of tire status sensors each tire status sensor is composed a sensing and processing unit having an unique tire serial number, a second low frequency transceiver and an RE transmitter. The wireless controller has a first low frequency transceiver and stores a plurality of tire serial numbers representing different wheel positions. The wireless controller outputs a control signal including a reset command and a new tire serial number to a specific tire status sensor. The sensing and processing unit will be reset and replace the tire serial number when the tire status sensor receives the control signal.

Abstract: A tire condition sensing apparatus and a mounting method thereof are disclosed for adjusting the angle and length of a valve stem to be mounted on various types of rims. The tire condition sensing apparatus comprises a housing and a valve assembly, wherein the housing comprises a pair of wing plates having first contact surfaces, and an open end is formed between the wing plates, and the valve assembly is pivotally connected in the open end of the wing plates, and the valve assembly includes a ring pad having second contact surfaces corresponding to the first contact surfaces, thereby providing a connection mechanism for greatly adjusting the angle between the valve assembly and the housing, and firmly securing the tire condition sensing apparatus on a rim.

Abstract: A code learning method for a tire monitoring device includes providing a plurality of sensor modules installed in the tires of the vehicle for sensing a condition and acceleration of the tires, each sensor module having an identifying code and a radio transmitter for transmitting signals including the condition of the tire, the acceleration of the tire, and the identifying code of the sensor module; inflating the front tires and the rear tires with different pressures, respectively; receiving the signals for identifying the signals transmitted from the sensor modules installed in the front tires or the rear tires by the order of the pressures in the signals; and driving the vehicle and receiving the signals for identifying the signals transmitted from the sensor modules installed in the left tires or the right tires by the acceleration in the signals.

Abstract: A pressure detecting device has a main control unit, at least one pressure detecting unit and a display. The display is electrically connected to a main controller of the main control unit and has at least one illustrating and illuminating symbol to show the condition of tire detected by the pressure detecting unit. Each illustrating and illuminating symbol has multiple symbol elements, such that the condition in the tire can be exactly shown to the user with the illustrating and illuminating symbols on the display.

Abstract: A method has acts of detecting pressure value in each tire of the vehicle, calculating a base point of pressure according to the detected pressure values and calculating a safety scope in pressure reference to the base point of pressure. An alarm will be generated when the pressure value in tires has a difference relative to the base point. With the method, a pressure detecting device can fit with different types or models of vehicles, and the use of the pressure detecting device is versatile.

Abstract: A detecting unit has a housing with a chamber, a cover, an air valve, a circuit board, a detecting assembly and a ground. The cover is attached to the housing to close the chamber. The circuit board is received in the chamber of the housing and has a signal processing unit mounted on the circuit board. The signal processing unit has a reset terminal. The ground is mounted on the circuit board and is electrically connected to the air valve. Accordingly, the signal processing unit will be reset when the reset terminal is electrically connected to the air valve.

Abstract: An antenna for a tire pressure detector is installed on an RF circuit board of the tire pressure detector. The antenna has a seat with a bottom plate. A post is uprightly formed on the bottom plate. A plurality of positioning members evenly formed at an outer periphery of the post. A wire electrically connected with the RF circuit board is coiled round the post and positioned in the positioning members. A cover has a body provided outside the seat. A bolt is inserted through the cover to fasten the antenna on the RF circuit board. The antenna has a low manufacturing cost, and is convenient to be installed.

Abstract: An antenna for a tyre pressure detector is installed on an RF circuit board of the tyre pressure detector. The antenna has a seat with a bottom plate. A post is uprightly formed on the bottom plate. A plurality of positioning members evenly formed at an outer periphery of the post. A wire electrically connected with the RF circuit board is coiled round the post and positioned in the positioning members. A cover has a body provided outside the seat. A bolt is inserted through the cover to fasten the antenna on the RF circuit board. The antenna has a low manufacturing cost, and is convenient to be installed.

Abstract: A code learning device for a tire pressure monitor attached to a vehicle comprises a sensor module installed in a tire of the vehicle for sensing the condition of the tire and transmitting the condition by a radio frequency (RF) signal. The sensor module further comprises a transponder for generating the electric power in response to an electromagnetic wave, thereby transmitting the identifying code of the sensor module.

Abstract: A code learning method for a tire monitoring device installed in a vehicle comprising a front left tire, a front right tire, a rear left tire, and a rear right tire, comprising the following steps of: providing a plurality of sensor modules installed in the tires of the vehicle for sensing condition and acceleration of the tires and each having an identifying code and a radio transmitter for transmitting signals including the condition of the tire, the acceleration of the tire, and the identifying code of the sensor module; inflating the front tires and the rear tires with different pressures, respectively; receiving the signals for identifying the signals transmitted from the sensor modules installed in the front tires or the rear tires by the order of the pressures in the signals; and driving the vehicle and receiving the signals for identifying the signals transmitted from the sensor modules installed in the left tires or the right tires by the acceleration in the signals.

Abstract: A tire-condition sensor installed on a wheel rim, which defines a wheel rim platform and a valve hole, of a tire includes a valve rod, a main body, and two positioning bolts. The valve rod extends from one side wall of the main body and passes through the valve hole for fixing the sensor on the wheel rim. The main body has a top surface and a bottom surface. The two positioning bolts adjustably extend from the bottom surface of the main body and rest on the wheel rim platform for supporting the main body on the wheel rim platform such that the tire-condition sensor is fixedly positioned on the wheel rim.

Abstract: A tire-condition sensor for installing on a wheel rim of a tire where the wheel rim defines a wheel rim platform and a valve rod. The tire-condition sensor includes a valve rod, a main body, and two positioning devices. The valve rod is for passing through the valve hole and is fixed on the wheel rim. The main body has a sensor for sensing the condition of the tire, connecting to the valve rod, and defining a positioning direction which is more or less perpendicular to the wheel rim platform. The two positioning devices, positioning on the main body, can move in the positioned direction relative to the main body, adjustably touch the wheel rim platform, and by means of this to firmly fix the tire-condition sensor.

Abstract: A wheel rim having a tire sensor for a pneumatic tire is disclosed. The wheel rim includes a rim portion having a valve rod, a base seat fixing on the rim portion at a location other than the location of the valve rod, and a sensor embedded in and attached to the base seat. The sensor is used for sensing the conditions of the pneumatic tire and transmitting the obtained signals by radio frequency.

Abstract: A tire pressure monitoring device, being installed in a motor vehicle having a plurality of tires, comprises: a plurality of sensor modules being installed onto the tire and having a wireless communication signal transmitter for transmitting a radio frequency (RF) signal, and such RF signal further comprises a specific code for the status of the tire and a specific code for the sensor module; a plurality of antenna modules, each being installed individually to each of the sensor modules for receiving such signal; and a receiving device, electrically coupled to the antenna module for processing such signal.

Abstract: A condition sensor of pneumatic tire is configured to be attached on a pneumatic tire of a vehicle, and the pneumatic tire has a rim with a rim bed. The condition sensor comprises a sensor circuit for detecting the condition of the tire, a power source for supplying the sensor circuit with electric power; and a housing having a cover portion and a base portion, in which the base portion is used to receive the sensor circuit and the power source. The cover portion is provided with an arc-concave surface having a convexity, in which the arc-concave surface is in arc-line contact with the rim bed and the convexity can be used to adjust the relationship position between the housing and the rim bed.

Abstract: A combined type intrusion and attack sensing device was a microwave oscillation and Doppler detect circuit an intrusion band-pass filter, an attack band-pass filter, two comparators, two alarm driving circuits, and a suspended object. The combined type intrusion and attack sensing device adopts the Doppler effect to sense an intrusion and employs a microwave antenna to transmit a signal in the microwave band within a predetermined range. The signal will be reflected by any object within above range or suspended object vibration, and the reflected wave will be received by the antenna. The reflected wave will be mixed with original signal to generate a difference-frequency signal. The difference-frequency signal is amplified by an intrusion band-pass filter or an attack band-pass filter. The amplified and filtered signal is sent to two comparator circuits for comparison with a reference signal to generate two driving signals to drive one of the two alarm-generating circuits.