JPS6252698A - Retreat detector - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention provides an escape route detection device that can rapidly detect abnormal temperature rises in the event of a fire, and can also guide people safely to the emergency exit of a building even in the dark. Regarding.

Conventional technology In recent years, when a fire breaks out in a building, etc. or on an access road, all the lights inside the building (the access road) are often extinguished, and the path to the emergency exit is so dark that it becomes difficult to identify or due to smoke. Many people's lives can be lost due to their inability to cope.

Problems to be Solved by the Invention Therefore, there has been a desire for a device that can safely guide evacuees to emergency exits by providing a prescribed device even in the dark or when visibility is poor. It was developed in consideration of the circumstances of An escape route detection device that uses a certain element and can reliably guide the user with an easy-to-identify guidance signal i? Means for solving zero problems and the present invention are as follows: (1) The device is placed in a predetermined retreat path, senses and conducts the ambient temperature, and conducts current when the temperature rises abnormally. an abnormal temperature rise sensing section that detects an abnormal temperature rise based on the temperature conducted from the guide line; an oscillation circuit that intermittently sends an oscillation output; and an on-control system using the output of the oscillation circuit. a TFI supply section configured to be portable and which supplies an intermittent W flow to the guide line when the abnormal temperature rise sensing section detects an abnormal temperature rise; and a detection unit having a circuit in which a coil is positioned in the direction of cutting the grinding force line and an induction signal is generated when the voltage generated in the coil has a predetermined polarity, (2) An inductive line installed in a predetermined retreat path that senses and conducts m degrees around j1, and conducts current when the temperature rises abnormally, and detects an abnormal temperature rise by the temperature r# conducted from this inductive line. an oscillation circuit that intermittently sends out an oscillation output, and a switching element that is turned on by the output of the excavation circuit, when the abnormal temperature rise sensing section senses an abnormal temperature rise. An intermittent current supply unit that supplies an intermittent current to the guide line, and an abnormal temperature rise sensing unit that generates an audio frequency current when sensing an abnormal temperature rise, and mutually transmits the audio frequency current with the intermittent current. An audio frequency 'M flow supply part that supplies the e-guide line the previous day without interference, and a first part that extracts only the intermittent electricity from the e-guide line's completed thunderstorms, which are formed for portable use. increasing only the audio frequency current of the FL current flowing through the coil and the guide line f, and distributing the second coil in a direction that cuts the lines of magnetic force generated around the guide line;
When the voltage generated in the first coil has the required polarity, an inductive signal is obtained, and before! ! F a detection unit that obtains an audio frequency signal based on 1ffFfK generated in the second coil (
# It is characterized by the fact that

EXAMPLE Hereinafter, an example of the present invention will be explained with reference to side ①. First, an outline of the overall structure will be explained with reference to FIG. In FIG. 1, la, lb, and lc are guide lines installed at the required locations on the first, second, and third floors of a building or the like. These guide lines 1a, 1b, ]C sense the surrounding fabric at each location where they are laid, and conduct the core temperature to abnormal temperature rise detectors 3a, 3b, and 3c, which will be described later.

'! To guide people in the direction of the arrow shown when there is an abnormal temperature rise due to a fire, etc. IF sweat is supplied. If there is an abnormal rise due to a fire outbreak near the emergency exit B on the second floor as shown in the diagram, evacuate to the abnormal temperature rise sensor conductor lines 1a, 1b, and xc connected to the end of the guide line 1b. Combines the current with a polar intermittent current and audio frequency for induction.

In this way, the VC is combined and the guide line 1a is
For example, a glove-shaped particle detector 7a, 7b, 7c? By bringing it close, the signal for free guidance can be received.

In this case, the direction of release (in the direction of the arrow shown) and the detector 7a.

When the directions of 7b and 7c match, for example, a light emitting element lights up, making it easy to find the evacuation direction even in the dark.
can be understood. It is also possible to intercept voice commands by receiving the audio frequency signal.

As mentioned above, the VCL detects the detectors 7a and 7b when a fire occurs.

It is possible to quickly guide the person in possession of 7C and his successor in the illustrated evacuation direction. In addition, in the event of a fire, the guide line 1
Direction of supply to a, lb, Ic (-1, evacuation direction) σ, command! Switching is performed by two direction switches 4a, 4b, and 4c. In FIG. 1, reference numeral 8 indicates a commercial power source, 9a an emergency power source, and 10 a switching switch for power outage.

Next is the bottom of the command line 2? 9, which will be described in conjunction with FIG. 2. In FIG. 2, the same parts as in FIG. Guidance line 1 (1a.

1b, IC) abnormal temperature rise is detected by the abnormal temperature rise sensor 3 (
3a, 3b, 3c)K senses if1;b and the power switch 5 is automatically turned on ζ11, and this fLVC connects the commercial power source 8 or the emergency power source 9 to the charging DC power source 1] 2 circuit WI current pressure snow source 12 and coupling circuit bias m
AC 1T power is supplied to the W R power supply 13. These DC power supplies 11, 12, and 13 each consist of a transformer and a diode, and are processing sources for converting AC power into DC power.

The charging DC power supply 11 supplies a direct Rw current to the power supply capacitor 15 via the charging resistor 14, and charges the capacitor 15 -+! One end of this Wi capacitor 15 is connected to a switching element, for example, a size 1
It is connected to the anode of one star 17. Thyristor 1
Canard 7 is the front fiF direction switch 4a, 4b
, 4c, the guide wires JI & 1 (1a, 1b, 1c)
is connected to one end of the The other end of the guide line 1 is grounded.
I'm here. The other end of the power supply capacitor 15 is connected to ground via a polarity changeover switch 42/-. This is an intermittent oscillation (blocking oscillation) circuit in which the time constant of the Ilt resistor and the capacitor (not shown) determines the conduction and non-conduction time of the transistor (not shown). This intermittent oscillation circuit [8] is operated by applying DC heavy pressure from the circuit A direct current low EF source 12 when the front power switch 5 is turned on, and its output signal has a waveform as shown in the figure. 1
A rectifier circuit 9 rectifies the output signal of the intermittent oscillation circuit 18 to remove the negative bottom component. Output signal i of rectifier circuit 19
j The waveform is as shown in the figure, and the high-power signal light is Said +7
It is supplied to the gate of star 17. Since the switching of the thyristor 17 is controlled by fiVc, the electric charge stored in the power supply capacitor 15 is released. Resistance 16? Lightning strikes through. Therefore, the size 1) VC waveform between the anode and cathode of the star 17 has a large opening t as shown in the diagram.
[itf flows;1. At this time, is the polarity selector switch 4? When switched to the T side indicated by the solid line, the W source capacitor 15 → the stray resistor 16 → the thyristor 17 → the polarity changeover switch 4 (the solid line part) → the beginning of the guide wire 1!1 → the terminal of the conductor line 1 → the connection. Point → Polarity switch 4 (solid line part) → Power supply capacitor 1
An intermittent large current flows through loop 5. Moreover, when the polarity changeover switch 4 is changed to the direction shown by the broken line, the power supply capacitor 15 → the discharge resistor 16 → the thyristor 17 → the polarity changeover switch 4 (the broken line part) → the grounding point → the end of the guideline 1 → the start end of the guideline 1 → Polarity changeover switch 4 (broken part) → Intermittent large current generator 1 circulates in the loop of power supply capacitor 15.

By switching the polarity selector switch 4 in this way, intermittent large current L'? It is possible to flow the guide line 1 in a direction corresponding to the direction in which the evacuation is to be carried out.

20, all audio frequency signals are generated and the frequency of the signal? It is an audio frequency oscillation circuit that can be changed arbitrarily. 21a is a microphone for voice commands of the voice input circuit 21; Either one of the audio output signal of the microphone 21 a and the output signal of the audio frequency oscillation circuit 20 is selected by a changeover switch 22 and then guided to a voltage amplification circuit 23 . The voltage amplifying circuit 23ij is a circuit that amplifies the audio frequency signal or audio signal. The output signal of this amplifier circuit 23 is connected to the inductive line 1 via a power amplifier circuit 24 and a coupling circuit 25 consisting of an integrated circuit.
supplied to This is a circuit for connecting the 25-piece coupling circuit and the single-force row width circuit 24 and the guide line 1, and is a circuit for coupling the above-mentioned intermittent lightning current.

is prevented from flowing into the power amplification circuit 24, thereby correcting the damage to the waveform of the output 'tFRI2C (audio frequency W current or voice current) of the power amplification circuit 24. The detector 7 (7a = 7 b * 7 c') detects the output current of the intermittent large current generator 1 and the power amplifier circuit 24.
2 transits, the guiding line 1(la, 1bll(
By detecting the lines of magnetic force generated around the current 1. , receives the signal of I2. The received signal from the T-grooving machine 1 is used as an energy source for the detector 7 itself, and the evacuation direction can be reliably known by, for example, causing the light emitting element 7 to emit light using the signal from the W flow 11. can. In addition, it is possible to intercept fire accident situations, evacuation orders, etc. by receiving and receiving signals from the W trencher 2.Next, the structure of the abnormal temperature rise detector 3 (3a, 3b, 3c) is shown in the cross-sectional schematic diagram in Fig. 3. 6 In Fig. 3, reference numeral 31 denotes a retractable member, for example, a cylindrical bellows. An end plate 32 having a hollowed out center portion is closely attached to one end of the bellows 31. The inner end 32 of this end plate 32.
A contact mounting conductor 3 is formed of a conductive member having a shape of 5yζn, and a hollow through hole 33a is closed at the inner end 32a.
4 is the other end Kn of the bellows 31, which is bonded so that the center part of each visiting conductor projects outward from the end plate 32.
, an end plate 35 hollowed out between the center and a predetermined location located on the outer periphery from the nucleus center is in close contact with each other.By making the center of this end plate 35 protrude outward, the cylindrical portion 35a is shaped. By making the predetermined portion of the end plate 35 protrude outward, the cylinder e35b? It's out of shape. Said cylinder part 35
1)-hole 36 for adjusting the amount of nitrogen at the end of b.
A gust IT adjuster 36 having a diameter is attached to the cap. The guide line 1 (1a, 1b, 1c) tj also serves as an abnormal temperature rise sensing line, and is made of a cylindrical body having thermal conductivity and electrical conductivity, for example, a 3 mm N degree copper pipe. One end of this guide line (copper vibrator) is closed and grounded, and the other end is hermetically fitted into the cylindrical portion 3.5a of the front f' end plate 35. The contact mounting conductor 34 is provided with a conductive movable contact 37jL. Said end plate 3
Opposed to #2! The IC is connected to the movable contact 37 of the zero contact mounting plate 38 on which a conductive contact mounting plate is fixedly mounted.
a A fixed contact 3 with conductivity is placed opposite the VC.
Between the conductive inner end 32a of the end plate 32, where the conductive terminal 7b is provided, and the conductive contact mounting root blade, there is a series circuit that includes the alarm 6 and the DC power supply 39; If, for example, a fire breaks out at a predetermined location near the guide line 1 where the commercial power supply 8 and the command unit 2 are connected to the series circuit, the copper I of the guide line 1 will suddenly rise due to an abnormal temperature rise. When the air inside the tube expands, the amount of air expansion is much larger than the amount of air leakage from the leak hole 36a of the air adjustment L36, so the bellows 31 expands in the direction of the arrow shown in the figure, allowing the bellows 31 to expand. Contact point 37
When a contacts the fixed contact 37 b, the alarm 6 sounds and the command unit 2 starts operating, and the abnormal temperature rise sensor 3 becomes slow, like seasonal temperature changes or day/night temperature changes. In order to prevent malfunction due to temperature changes, the air amount regulator 36 may be adjusted. In other words, if the amount of leakage from the void amount adjuster 36 is made equal to the amount of air expansion due to the slow temperature change, the balance is maintained, the bellows 31 does not expand or contract, and the movable contact 37a contacts the fixed contact 37b. do not. Note that the leakage amount can be automatically adjusted in combination with a computer, taking into consideration seasonal temperature changes, day/night temperature changes, etc.

Next, an example of a specific circuit of the command device 2 is shown in FIG. Thickness 4
In the figure, parts that are the same as those in Army 2 are indicated with the same symbols.
The contact SW+ of the power switch 5, whose explanation is omitted, is
The contact SW1 is linked to the bellows 31 of the abnormal temperature rise sensor 3, and is closed when the bellows 31 expands and the movable contact 37a contacts the fixed contacts 37b and 37c when an abnormal temperature rise is detected. When is opened,
Bush switch SWs (normally closed) from commercial power supply 8.

Hughes f, 17 ray RYi? and said contact 5XV
Current flows through I. Therefore, the relay RY is energized and the interlocking contact SWz is closed.Even if the bellows 31 is contracted and the contact SW+ is opened, the output power of the commercial power supply 8 will be reduced unless the bushing switch F3Wsf is pressed to open it. DC power supply 11 for charging continues to be supplied to the power transformer T1. DC low voltage power supply 1 for the circuit consists of the power transformer T1 and the diode D1 with the polarity shown.
2 is a wire connection consisting of a power transformer T1, a diode bridge circuit B and D2 in which all diodes are connected in a bridge, and a DC power supply 13 for biasing the circuit is a power transformer T1 and a circuit 18 in which all diodes are connected in a bridge, and a transistor Tr.
The six rectifier circuits 19 are configured such that the repetition period is determined by the feedback transformer T2 connected between the collector base of the + and the time constants of the variable resistors V, R+ and the capacitor C2. The signal output from the emitter of the transistor Tr is supplied to the gates of the thyristors &C and R+ via the diode of all polarities shown and the capacitor Cak, and the thyristor S10% Ratl is turned on in advance, so that the +Bt source (DC low voltage for the circuit) is Power supply 1
The electric charge of the precautionary capacitor Cs is transferred to the transformer T3 and the thyristor S%C%R1? : The secondary output of the transformer T3 at that time is passed through the diode Ds to the thyristor 17 (S, C, R
With this configuration, a large power signal can be obtained at the gate G of the thyristor 17, and the switching of the thyristor 17 can be controlled reliably. ◎The audio frequency oscillation circuit @20 is used, for example, in facilities for the blind, etc., when guiding by tones.

Integrated circuit AN127. The voice human power circuit 21, which consists of an output transformer T4, a variable capacitor V for frequency variation, and a variable resistor V, & is used to transmit fire accident situations, evacuation orders, etc. Transformer Ts
The voltage amplification circuit 23 is an integrated circuit (AN
The power amplifier circuit W & 24 uses an integrated circuit (AN368), and the resistance value of the resistor group used and the capacitance of the capacitor group used in the voltage amplification circuit and the power amplification circuit 241C are determined by the normal amplification operation. The coupling circuit 25 shall be set to a value such as the value shown in the figure, such that the voltage amplifier circuit 23 and the power amplifier circuit 24
The output signal (audio current) of the audio frequency oscillation circuit 20 or the audio human power circuit 21 guided through the
The intermittent current with the polarity shown is calculated by adding up the secondary output of the transformer T6 (audio current I2) and the DC output of the bias power supply 1B1n5 (coupling circuit bias DC power supply 13). It is configured to send out to the guide line 1 side via the inflow prevention diode D4.

Here, we will explain why the intermittent groove cutter 1 can be prevented from flowing into the power tank 1@circuit 24 side by configuring the coupling circuit 25 as described above, and how the sound current Iz'r is faithfully sent to the guide line 1lIll. The reason why it is possible and r? lI5 figure (&),
(b).

This will be explained together with (0). Figure 5 (a), (b)
, (c) both simplify a part of the command unit 2 and are equivalent circuits Q. First, let us assume that the coupling circuit 25 is made up of only the transformer T6 as shown in (a) and costs $5. In this case, by controlling the switching of the thyristor 17, the intermittent electric trench 1 flowing from the capacitor 15 not only flows into the guide line 1 but also flows into the secondary winding 11 Lx of the deba transformer T6.
It also flows in as shown in the figure J, /. Therefore, the magnitude of the intermittent current 11 flowing through the guide line 1 becomes smaller.

Abnormal voltage may occur across the primary winding L1 of the output transformer T6, leading to damage to the circuit. The audio trencher 2 supplied from the signal R8, which is equivalent to the frequency generator circuit 20 or the audio input port @21, is output from the output transformer T6? When this happens, the negative polarity component of the audio current fih flows through the thyristor 17 to the capacitor 15 side.1 As a result, the audio current I2 supplied to the guidance line 1 has a negative polarity component. This results in missing current and loss of fidelity. Next, suppose that the coupling circuit 25 is constituted by a deba transformer T6 and a diode D4 connected to the secondary winding L2 of the transformer T6 to prevent current flow, as shown in Section 5 (b). Since the intermittent current inflow prevention diode D4 is inserted, it is possible to prevent the intermittent electric groove cutter 1 from flowing into the Deba transformer T4 side. The negative polarity component is removed by the inflow prevention diode D4, and the fidelity is lost as in the case of Fig. 5(a). 6 and the bias power supply +Bias connected to one end of the secondary winding L2 of the transformer T6.
(Coupling circuit bias DC power supply 13) and a diode D4 for preventing intermittent current inflow connected to the other end of the secondary winding L2. In this case, a positive direct current bias current IB is applied to the audio trench 2 output from the output transformer T6. Therefore, the audio current I2 supplied to the guide line 1 becomes a pulsating flow of a positive polarity audio signal, so the audio current I2 does not flow into the capacitor 15 side via the thyristor 17.

Moreover, since the diode D4 for preventing intermittent TIN inflow is inserted, the intermittent flow does not flow into the blade transformer T6 side.

The unipolar intermittent W trench 1 supplied to the @1 guide line 1 is for guiding evacuees in the event of a fire in the same direction as the safe evacuation direction. Therefore, the polarity selector switch 4
? Switching is performed as shown in the equivalent circuit shown in FIG. That is, the contacts a1 and a2 of the polarity changeover switch 4 and the contacts b1 and b2? If they are short-circuited, the direction of the current flowing through the induction line ITICRf'L will be in the direction of the solid arrow, and the contacts a1 and a5 of the polarity changeover switch 4 will be in the direction of the solid arrow. If the contacts b1 and b8 are each short-circuited, the direction of the current flowing through the induction line IVC#f'L will be in the direction of the dashed arrow. ! ! Actually, what is the location of the fire and the optimal evacuation route for this location? The polarity changeover switch 4 is controlled by the computer described in ft.

Next, we will discuss the configuration of the detector 7 and its operation when the detector 7 is brought close to the guide line 1, with reference to FIG. Batteries etc. are not installed in the tower, and the city's energy reception @X
41 and the audio signal receiving section 42. The detection coil L+ of the energy receiving section 41 detects the rising edge of the current (11, I2) flowing through the guide line 1 that includes high frequency components. A ferrite core Fl'J- is used, which is highly sensitive only to unipolar intermittent trenching.

Therefore, a pulse-like voltage is induced in the detection coil L1 by the lines of magnetic force generated by the intermittent heavy groove cutting 1. Visiting city of this detection coil L1! The signal E is rectified by a rectifying element, such as a balanced diode, and applied to the power supply circuit 44. Is this power supply circuit 44 a diode 43? Heavy pressure EB input via? The light is smoothed to cause the light emitting element 45 to emit light, and power is supplied to the amplifier circuit 47 of the audio signal receiving section. Is there a diode 43 in the JlfJ detection coil L1? Because of the contact grinding, the voltage EB is output only when the coil L1 is oriented in a predetermined direction with respect to the guide line IVC. The direction of this ninth detector 7 (detection coil L1
The light emitting element 45 emits light only when the direction (direction of
Therefore, the safe evacuation direction can be reliably recognized in the event of a fire or the like.

In addition, the detection coil has low sensitivity to the low frequency audio cable 2VC, so there is no output. The detection coil L2 of the audio signal receiving unit Tsukuda is a low frequency iron core F2 that is highly sensitive only to the low frequency audio 1st stream 1tK. I am using it.

For this reason, one voltage is induced in the detection coil LzK by the magnetic lines of force generated by the spinning voice thunder groove mechanism 2. This ω pressure of the detection coil L2 is supplied to a filter circuit 46, and the high frequency component of the intermittent tf RL is removed by the filter circuit 46. As a result, only the audio signal is extracted from the filter circuit 46, amplified by the amplifier circuit 47, and then received by the earphone 48. In this way, voice commands can be intercepted in the event of a fire.

Next is an example of a specific circuit of detector 7? It is shown in Figure 1E8. In FIG. 8, the same parts as in FIG. 7 are shown with the same reference numerals, and their reference numbers are omitted. The power supply circuit 44 includes high frequency choke coils R-F, C+ and a capacitor tC+.

C2 constitutes a filter circuit, and diode 4
3? The induced voltage of the detection coil L obtained through the detection coil L is smoothed and accumulated as a power supply voltage. -The output current of the Shigen Kaibutsu Shrine is connected to the light emitting element 45VC through the resistor 1"+'?r-
It is also supplied to the amplifier circuit 47. The filter circuit 46 of the audio signal receiving section C includes diodes Ih and Ds for blocking excessive input, and a high-frequency choke coil kR.
, F, C2, R, F, Cs Oyobi Conde 7 f Cs
The audio trencher 2 from which intermittent current components have been removed by a filter circuit 46 consisting of a filter consisting of *Ca*Cs is amplified by an amplifier circuit 47 consisting of an integrated circuit AN127 and an output transformer T. , are also supplied with the earphone 48.

Detector 7 as above? The detector 7 is configured so that it operates only when facing in the direction of evacuation, but this is possible because the Ichidoshi 1 that supplies the guide line IK is a unipolar intermittent W flow. Therefore, AC wi or DC W
In the case of Flow, it becomes Fumachi-bushi. The reason? Figure 9 (a) ~ □
□□). The detection coil L and diode 43 of the 11-force energy receiving section 41 can be simplified and represented as shown in FIG. 9 (1k). First, the guide line 1 is
) flows an alternating current with a sinusoidal waveform. Then, the induction line IK has magnetic lines of force H+ and H that have different directions because the current polarity (current direction) at times t+ and t2 are different.
2 occurs as shown in FIG. 9(c). In this condition, the detection coil is 1'? - The magnetic lines of force H+, I(2) are brought close to each other at an angle where they can be effectively used as shown in FIG. Outputs are obtained at the terminals a and b shown in the figure even in the direction n.For this reason, even if the detector coil L+? is brought close to the guide line 1 in the direction of the chair nine, the detector 7 is 1lrI'1 9 (d) on the guide line 1.
Suppose that a direct current lightning fi like this is applied. f and guide line 1
At time t.

9(e), magnetic lines of force H3 are generated. Since the direction and strength of this line of magnetic force H3 are always constant, even if the detection coil L+ is brought close to the line of magnetic force H3 as shown in FIG. 9(e), 1 voltage will not be induced in the coil L. terminal a,
No output is obtained at b - this is why the detector 7 does not always operate. Therefore, the induction line 1 [unipolar intermittent current as shown in Fig. 9(f)?] finish Then, the guide line IK line, time 1. ．．
12 [current polarity 0 current direction) are the same, so the lines of magnetic force Ha and Hs with the same direction are the 9th [iW+ (g
) occurs as in In this condition, the detection coil L+
? Figure 9 (
g). In this case, for example, if you approach in the direction shown by polarity mark I, @ will get terminals a and b VC output, but if you approach it in the direction shown by polarity mark H, a force of 1f will be obtained.
From the relationship between the direction of JHs and the polarity of diode 43, terminal a
, b does not get the output r.

In this way, the detection coil L +
? Detector 7 indicates I only when you get close to it! I've released my first work. For this reason, it is possible to recognize the direction in which to evacuate by making peace with this work.

Effects of the Invention As described above, the present invention provides the following effects.

(1) Abnormal temperature rises in emergencies such as when a fire breaks out can be quickly detected, and evacuees can be safely guided to the emergency exit of a building even in situations where there is no visibility.

(2) Since the magnetic field η generated by the current flowing in the guide line is used to generate a guide signal, it is easy to identify the escape route in an emergency, and the detection unit does not include consumable parts such as batteries. ? It has the advantage that it can operate reliably in an emergency because it is not required and its performance does not deteriorate due to changes over time.

(3) The direction of evacuation in an emergency can be easily determined by the detection unit, as well as voice commands and information? This can be intercepted, and evacuees can be reliably guided by hearing and prayer.

(4) Detection unit σ It is designed for portable use and operates simply by bringing it close to the guide line. Therefore, no complicated operation is required and it can be used quickly in an emergency. (5) Since a 0T audio frequency current supply section is provided, the audio frequency W# and the intermittent current can be connected to the guide line without mutual interference. can be supplied to

(6) Since the guide line has both the function of detecting and conducting abnormal temperature and the function of energizing the W current being guided, the total equipment area of the device can be drastically reduced.

(7) Even in facilities for the blind, evacuees can be safely guided using audio frequency signals.

[Brief explanation of the drawing]

Fig. 1 to Fig. 9 each show an embodiment of the present invention, Fig. 1 is a block diagram showing the overall configuration, Fig. 2 is a block diagram showing WR acquisition of the command unit, and Fig. 3 is an abnormal temperature rise. A simplified sectional view of the sensor, No. 4M is a circuit diagram showing the configuration of the command unit, and No. 5 (
a), (b), and (c) are each 1I7 of the coupling circuit.
An equivalent circuit diagram to explain one operation, an equivalent circuit diagram to explain one operation when switching the direction of the 6th induction line current,
Fig. 7 is a block diagram for detecting the detector's movement, Fig. 8 is a circuit diagram showing the configuration of the detector, Fig. 9 is a
), (0), (e), and ) are each the operation of the detection unit? Illustrated diagrams for explanation, Figures 9(b) and (d)
, (f) is a waveform diagram of the W flow supplied to the guide line respectively, 1 (1a, 1b, 1c) ・-
・Guidance line, 2... Command machine, 3 (3a, 3b, 3c)
...Abnormal temperature rise sensor, 4...Polarity switch, 5...Power switch, 6...Alarm, 7 (7a
, 7b, 7c)-Detector, 8... Commercial w source, 11... DC power supply for charging, 12... DC low voltage power supply in the circuit, 13... Combined circuit bias A DC 1 source,
14...Charging resistor, 15...Power supply capacitor, 16
... Discretion resistor, 17... Thyristor, 18... Intermittent oscillation circuit, 19... Rectifier circuit, 20... Audio frequency oscillation circuit, 21... Audio input circuit, 23... Voltage amplification Circuit, 24... Military sword amplifier circuit, 25... Coupling circuit, 31... Bellows, 37 a... Movable contact, 37
b...Fixed contact, 41...Lightning energy receiving section, 42...Audio signal receiving section.倚１と＾! ? Q Dokoku@Mari

Claims (2)

[Claims] (1) A guide line installed in a predetermined retreat path that senses and conducts the ambient temperature, and which conducts current when the temperature rises abnormally, and detects an abnormal temperature rise based on the temperature conducted from the guide line. It has an abnormal temperature rise sensing section, an oscillation circuit that intermittently sends out an oscillation output, and a switching element that is turned on by the output of the oscillation circuit, and when the abnormal temperature rise sensing section senses an abnormal temperature rise, the induction a current supply unit that supplies an intermittent current to a line, and a coil that is formed to be portable and is positioned in a direction that cuts the lines of magnetic force generated around the guide line, and when the voltage generated in the coil has a predetermined polarity; An escape route detection device comprising: a detection section having a circuit for generating a guidance signal. (2) A guide line installed in a predetermined retreat path that senses and conducts the ambient temperature, and which is energized when the temperature rises abnormally, and detects an abnormal temperature rise based on the temperature conducted from the guide line. It has an abnormal temperature rise sensing section, an oscillation circuit that intermittently sends out an oscillation output, and a switching element that is turned on by the output of the oscillation circuit, and when the abnormal temperature rise sensing section senses an abnormal temperature rise, the induction An intermittent current supply unit that supplies intermittent current to the line and the abnormal temperature rise sensing unit generate an audio frequency current when an abnormal temperature rise is detected, and the audio frequency current is transmitted without mutually interfering with the intermittent current. an audio frequency current supply unit that supplies the guiding line; a first coil that is formed to be portable and extracts only an intermittent current component of the current passing through the guiding line; A second coil for extracting only the current component is arranged in a direction that cuts the lines of magnetic force generated around the induction line, and an induction signal is obtained when the voltage generated in the first coil has a predetermined polarity, and and a detection section that obtains an audio frequency signal based on the voltage generated in the second coil.