JPS596159A - Theftproof dedice of car - Google Patents

Abstract

PURPOSE:To function a theft preventor reliably and to simplify the operation by constituting the control circuit of the theft preventor with digital electronic circuit and controlling with binary signal which is converted from decimal input signal through an encoder. CONSTITUTION:Upon depression of switches (S) in the order of mnemonic number, the output signals A-D are compared with the mnemonic number stored in IC1-IC4. Upon matching of numbers, IC1-IC4 will conduct the thyristors ST1- ST4 sequentially to function the relay R2 thus to flow current to the starting key circuit (M). Upon depression of erroneous number, each signal A-D will match with any one of the unmatched number to input its H signal and another H signal converted from L signal through turning on of the switch S6 to AND5. Consequently thyristor ST5 will turn on to function the relay R1 thus of function the alarm buzzer X2 thereby the switch (G) is turned off to clear the circuit memory.

Description

[Detailed Description of the Invention] The present invention relates to a device for preventing the theft of automobiles and similar vehicles. Conventionally, keys that match numbers are often mechanical, and keys that match numbers are mechanical. If you go to the lock, you can always open the lock, but once you know the setting number, you can't change the setting number and you have to buy another lock. There are electronic circuit keys, but many of them are incomplete. For example, if there is a set number such as A, 口, C, it will open and conduct even if it is combined with 口, C, A, or HA, 口, A. In addition, it is impossible to use the same number of four-digit combinations, such as C, 口, HA, 口, on two sides, and the combinations of such symbols are limited and incomplete. Also, the keyboard at hand had a switching function, so it had to be pressed again to return to the original state.Also, the memory device could disappear due to the internal battery being exhausted, which had many disadvantages when using the book. The present invention eliminates such disadvantageous conditions of the conventional method, and the automobile anti-theft device of the present invention is constructed using a digital multiplex circuit. Junho B%C1D, B due to the adoption of encoder
, C, D, code, and has been completed to operate with a single signal.In particular, the number of parts in the tenki board OQ is small, and it consists of one transistor (TR+) and a diode (DI (D2)). B, CS with 2 and 6 resistors
D. Since the remote control has been made extremely compact and has a signal generator, it can be easily installed inside the steering wheel of a car, for example, and can be placed in the most appropriate location on the driver's cab. All tenki are equipped with flip-type button switches, making them easy to operate. Explaining this with a wiring diagram,
The switch (Sl) is a button switch (spring type) with numbers from (1) to (9), and by pressing the numbers (1 to 9) in sequence according to the order of the code numbers. BC, D and output are obtained from each terminal of (A-D). For example, when button switch No. 6 is pressed, voltage is applied between the diode (DID2) and electrons are applied to FB+ and (C1), respectively. \S (6) output signal (A%B1C,
D, ) is at the (L%H1H,L, ) level, and has encoder switches (82 to S5) set in advance that flow to each line of (A, B, C, D,) in the wiring diagram, The first signal is compared with (IC+) and if they match, (
The output of I1) becomes H level, the output of (AND+) also becomes the same level, and the thyristor (ST+) becomes conductive.
Therefore, when the switch (Sl) is pressed for the second time, one of the inputs of (A N D2) will maintain the negative level state, the B, C, D signals will be added to (IC2), and the setting number (S3) will be changed. If they match, all the outputs of (IC2) will be (L level), and (engine 2) will be (H) level output, and (AND)
2), the output of (ST+) is at (H) level, and the output of (AND2) is also at the same level and is applied to the gate of thyristor (Sr2). If 6) becomes acceptable level (ANDg)
The output signal of (AN'D4) also becomes the same level, and one input of (AN'D4) maintains the same level.
Sr1) is activated, so the relay (R2) is activated, causing (+B+) to conduct with (A2), current flows to the car's starting key circuit, and the starter is enabled to operate, and then the switch (Sl) If you turn the engine key on without operating the button, the contact point is turned on (Gl) and the horn (Xl) starts sounding. If you press the T number by mistake, the B , C, D, coat signal C (86) ~ (SN) (7) It is designed to match any of the mismatch numbers set in the VC, and each (C) level of A, B%C%D1 The signal passes through a fixed line among the diodes (Dg to D6) (A
NDs). Therefore, one of the fixed t inputs of (Al-(L)) will be at the same level, but in order to set all the remaining inputs to the (u level), the setting switch (s6) ψ of (A-D) is set to the same level. It is necessary to make the amount of L) level into the round level, therefore, N F: E (+B+
), all inputs become the same level and (AND
The outputs of s) become the same level and 7iN flows to (STs), and the relay (R1) is activated and the alarm buzzer (I2) starts sounding from (3). At the same time, the interlocking switch (C+) point The holding circuit of Turno (ST+ -8T4) turns OFF,
Match circuit memory is cleared. Therefore, it is impossible to keep searching for the matching number of the key circuit. Specific secret number setting switch (82~Ss) is ON, 0FF
1, you can freely change the setting number. Setting the error number N sets a number outside the specific secret number setting. Comparison and verification is performed as appropriate with (ANDs ~ ANDN). Relay (R2) ) is the remote control power switch (S
W+ 1 is set to OFF and OFF, so the alarm system will not activate even if the switch (Sl) is pressed during driving, and the circuit will be cleared when the driver leaves the city by connecting it with the door switch (SW2). The train is equipped so that when reboarding, the train must press the code number again to be able to drive. Furthermore, even if the engine key is turned off while the vehicle is stopped, the electronic circuit is not cleared, so a 5-start is possible. If the driver presses the wrong key, he or she presses (CR+)Q4 and then the variable switch (Sl).Also, since there is a memory device, the same number can be pressed repeatedly if alternated, so it is possible to press the same number repeatedly. The circuit arrangement can be configured in a variety of ways, and if one button other than the dark symbol is designated as a key changer, and pressing it causes the key to enter and start, it can be used as a key-less button. Of course, it is also possible to use an automatic theft prevention device.

[Brief explanation of the drawing]

Figure 1 shows a perspective view of the main body of the electric operating device of the present invention, which is connected to each case by a cable, and θQ is 04 in Figure 2. 02 is a case that stores the remaining wiring except for the wiring in the O0 case, and θυ is the cable that connects 01 and 0.
Figure 2 shows all the wiring for this device, and the same parts in all the diagrams are marked with the same code.

Claims (1)

[Claims] As detailed in the main text and clearly shown in the drawings, the driver can use the specific dark-light memory circuits in the appropriate number of electric circuits provided in the push-button devices freely installed in various shapes at appropriate positions in the palace. This is a system that transmits arbitrary numbers on the number button in a predetermined order, and only then does current flow to the engine circuit, and when the key is turned at that time, the engine starts. If you press even one button by mistake or in the wrong order, the alarm system will immediately activate and a bell will ring.Also, since it has a memory device, you can press the same number repeatedly as long as it is alternate. This is an anti-theft device for an automobile, in which the specific symbol circuit can be configured in various ways, and it is of course possible to specify buttons other than the dark-light circuit and operate them in place of key buttons.