JPH021437B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a reverse detection malfunction prevention system for trunk line trunks for activating game boosters.

In a trunk line trunk that performs conventional one-wire activation, when the booster is activated after forming a loop with the trunk line, the levers detection circuit that forms the loop detects that the booster battery is activated by the high-resistance earth of the opposing station via the levers detection circuit. This has the disadvantage that the reverse detection circuit may malfunction.

SUMMARY OF THE INVENTION An object of the present invention is to prevent malfunctions of the reverse detection circuit caused by loopback when the game booster is activated.

In order to achieve the above object, the present invention includes a one-line starting circuit ST1 that is activated by connecting a booster power supply to one line of a trunk line, and a reverse detection circuit that is inserted into the trunk line so as to form a loop.
In the trunk trunk having RVD1, by a start control signal that starts the single line start circuit,
comprising a gate circuit PRT that suppresses the detection signal of the lever detection circuit while the one-line activation circuit is activated;
When the one-line activation circuit activates the game booster, the output signal of the lever detection circuit is suppressed by the gate circuit.

Hereinafter, the present invention will be explained in detail with reference to the drawings.

The figure shows an embodiment of the reverse detection malfunction prevention method according to the present invention. In the figure, LDT0, IDT
1 indicates trunk trunks that oppose each other via trunk lines, LSV0 and LSV1 are line monitoring circuits, and ST
0 and ST1 are single-line activation circuits, which are mounted in the respective trunk trunks LDT0 and LDT1.
When starting a game using the booster voltage V _B from the trunk line trunk LDT1, first operate relay B ₁ to isolate the line monitoring circuit LSV1, and then operate relay OG ₁ to form a loop for starting the game. Booster voltage B ₁ before booster startup
→ Contact b ₁ of relay B ¹ → Contact C ² of C ₁ → Contact og 2 of relay coil L ₃ → Contact og ² of relay OG ₁ → Reverse detection circuit RVD1 → Contact C 1 of relay coil L ₂ → Contact C ₁ of C ¹ is formed. Thereafter, the single-wire starting circuit ST ₁ is activated and the booster voltage V _B starts the game through the path B ₁ →A ₀ . The game's trunk LDT0 is A0
The activation is detected through an internal circuit (not shown). At this time, the trunk line trunk LDT0 of the game player
Since the high resistance ground is rising at B ₀ through the line monitoring circuit LSV0 → contact b ⁰ , the booster voltage V _B of LDT1 causes ST ₁ → b ¹ → C ² → L ₃ → og ² →
RVD1 → L ₂ → C ¹ → A ₁ → B ₀ → b ⁰ → LSV0 wraparound occurs and reverse detection occurs. Therefore, while the startup control signal ST is being sent, a reversal detection prevention circuit consisting of a gate circuit that prohibits reversal detection signals is required.
PRT is set up, and only when the opponent sends earth to A ₀ and battery to B ₀ as a connection confirmation signal or response signal, A ₀ →B ₁ →b ¹ →C ² →L ₃ →og ² →RVD１→L ₂
→C ¹ →A ₁ →B Reverse detection circuit RVD1 with current of ₀
is activated and sends a gate signal to the lever detection prevention output circuit PRT. As a result, a reverse signal is taken out to the RV. When the one-line activation circuit is activated by the activation signal ST, the activation signal ST is also input to the reverse detection prevention circuit. Therefore, malfunctions caused by the activation signal can be prevented by the lever detection prevention circuit PRT.

According to the present invention, the malfunction of the reversal detection circuit during game start-up can be solved by the reversal detection prevention circuit PRT, which is constructed of simple hardware logic, and has the effect of improving the reliability of the apparatus.

[Brief explanation of drawings]

The figure is a circuit diagram showing an embodiment of the reverse detection malfunction prevention method according to the present invention. In the figure,
LSV0 and LSV1 are track monitoring circuits. ST0, ST1
is the game start circuit. B0 and B1 are track monitoring circuit disconnection relays. C ₁ is C position relay. OG1 is an outgoing relay. RVD1 is the reverse detection circuit. PRT
is a malfunction prevention circuit. L ₂ and L ₃ are chiyoke coils.
b ⁰ is the B0 relay contact. b ¹ is the B1 relay contact. ^C1 ,
C ² is the C1 relay contact. og ¹ and og ² are OG1 relay contacts. ST is the start control signal. RV is reverse detection signal.

Claims (1)

[Claims] 1. Includes a single-line starting circuit ST1 that is activated by connecting a booster power source to one line of the relay line, and a reverse detection circuit RVD1 that is inserted into the relay line so as to form a loop. In the trunk trunk, a gate circuit (PRT) suppresses a detection signal of the lever detection circuit while activating the single line activation circuit by a activation control signal that activates the single line activation circuit.
A reverse detection malfunction prevention method, characterized in that when the one-line activation circuit activates a game booster, the output signal of the reverse detection circuit is suppressed by the gate circuit.