JPH01216629A - Signal apparatus - Google Patents

Abstract

PURPOSE: To surely transmit a warning to a road user by forming a system from a transmitter for sending out a 1st signal in cooperation with an emergency vehicle or a warning device and a receiver for receiving the 1st signal and generating a 2nd signal to be reported to the users of vehicles on the road. CONSTITUTION: This system is formed from a pulse generator 1, transmitter 2 and flash light 3 installed on the emergency vehicle for sending a signal through an antenna 5 on the emergency vehicle. Further, the system is formed from voice coupling to be performed by options to an alarm receiver 8, display 7 and car radio speaker 8 existent in the road vehicle and connected its antenna. In the case of use, when an opener/closer is operated in the emergency vehicle, the flash light is operated and an alarm signal is transmitted. This alarm signal is received by the receiver and displayed on the display and an acoustic signal is outputted through the car radio speaker.

Description

[Detailed description of the invention] The present invention relates to a signaling device.

In particular, the present invention relates to emergency signaling devices.

In particular, the invention relates to signaling devices and signal receivers.

Emergency vehicles such as police, ambulances, and fire engines are usually equipped with lights and sirens or other audible emitters to alert other road users that the vehicle is under emergency conditions.
Communicate that other road users should give way.

However, it may not be possible to hear such sirens or other sound generators.

The last is a particular problem with regard to air conditioners, car radios or car audio reproduction devices, which are often used by road users.

The invention includes a transmitter that cooperates with an emergency vehicle or a warning device and sends out a first signal; The object of the present invention is to provide an emergency or warning signal system consisting of a receiver that generates two signals.

The transmitter and the receiver have a distance of 100+a or more and 1000m.
It is advantageous to have the following effective range, and particularly, it is more effective to have an effective range of 200 m or more and 500 m or less. Effective range is 2
The most effective distance is 50m to 350m.

The second signal is one or both of an optical signal and an acoustic signal.

Advantageously, the transmitter is capable of transmitting said first signal on a frequency which is at least locally, stately, more nationally and internationally most advantageously co-operated.

Advantageously, the transmitter transmits said first signal to activate other signaling means, such as lights, sirens or other sound generating means. Regarding this last point, multiple-acting switches can be provided.

Advantageously, the receiver is placed under conditions to receive said first signal and to generate a second signal at all times when said vehicle is in use. Finally, it is advantageous if the receiver is connected to the electrical system of the road vehicle under the conditions of use of the road vehicle.

The receiver may be associated with a car radio, tape player or other audio reproduction device for use in motor vehicles. In this case it is advantageous to have means for at least reducing or suppressing the audio signal generated by said car radio, tape player or other audio reproduction device when generating the second signal.

Alternatively or additionally, the receiver may utilize the amplifier and/or speaker means of a car radio, tape player or other audio reproduction device used in a motor vehicle.

Another object of the present invention is to provide the transmitter to be installed in an emergency vehicle.

A further object of the present invention is to provide the receiver installed in a road vehicle.

The system according to the invention is briefly described in the accompanying drawings.

The first system shown in FIGS. 1 and 2 is operable by a pulse generator 1, a transmitter 2, and an opening/closing means (not shown) installed in an emergency vehicle and connected to a power source 4. It consists of a flashlight 3 which sends a signal via an antenna 5.

Furthermore, the system consists of a warning receiver 8, a display 7 and an optional audio coupling to a car radio speaker 8 located in the road vehicle and connected to its antenna.

In use, when the switch is activated in an emergency vehicle, it will activate a flashlight and transmit an alarm signal.

This alarm signal can be received by a receiver, displayed on a display, and perhaps even an acoustic signal can be emitted via a car radio speaker.

3 and 4, power supply 21, identification unit 22, code generator 23, clock controller 24, RF generator 26, ON/OFF device 27 and external antenna 28
A transmitter 20 having a transmitter 20 is shown in FIG.

FIG. 4 shows an output unit 30 having a light source 38 connected to a power supply 31, a basic data decoder 32 with an input 35, a clock controller 33 and an audio generator 38.

In FIG. 5, an antenna 52, a mixer 53, a local oscillator 5
4. There is a module 51 consisting of an amplified detector 56 and a data output line 57.

When the system of FIGS. 3 and 4 is used in conjunction with receiver module 51, transmitter 20 outputs an output RF multiplied signal to antenna 52 when enabled. This signal has special characters that can be predefined in the identification unit 22.

module 51 receives a signal with its antenna 52;
A data output can be generated on line 57. The signal on line 57 is passed to input 35 and if decoder 3
If you decode it into an appropriate character using 2,
Via a sound generator 36 and a speaker 37 an output signal can be generated on line 34 which generates an alarm sound.

In some cases, closing switch 39 allows light source 38 to be used as a warning light source.

The modified module 60 shown in FIG. 6 is a modification of the output unit 30, and includes a similar input terminal 35, a decoder 82, an output line 64, an audio generator 66, a speaker 67, and a switch 69.
and a light source 68, and optionally includes an alpha-numeric decoder 69 and a display 71.

Module 80 operates the same as unit 30, but
The exception is that decoder 69 and display 71 can be used to display the characters of the received signal.

1. Radio Frequency Concedation 1.1 Frequency Selection The basic requirement of this system is a range control system to which the warning transmitter can be subjected.

The radio frequency selection must be such that buildings, trees and other sights do not obstruct the transmission path. In contrast, the frequency must be weather-independent and the system must minimize radio interference mechanisms. The interference mechanisms that affect the performance of the warning system also depend on the selected frequency band.

Transportation authorities must approve and, to the extent possible, license frequency selection and transmitters. 150-1000
The radio frequency in the Mhz band satisfies the requirements of range, interference and simple design.

The transmitter power level and receiver threshold sensitivity must be controlled to achieve a range of 350-500 meters. Tolerances that are too wide make the desired range setting difficult to predict.

2. Warning Transmitter 2.1 Ink Connection with Host Vehicle The warning transmitter assembly must be attached to the host vehicle (or control box), which includes physical and electrical attachments.

As an example, the warning transmitter must remain active while the warning light is on. The observed power consumption of the warning transmitter is very low, which may allow the transmitter to be powered from optical circuits.

The warning transmitter must have an antenna of the following type connected to it.

The size of this antenna can be mechanically reduced regardless of the operating frequency.

/ From an engineering standpoint, it is desirable that an external antenna provide the transmitter with a controlled radiation pattern from the host vehicle. The transmitter may be equipped with a warning receiver, but need not be mounted in the cabin where there is no operator present to control it. The transmift antenna combination package can be installed beside the flashlight.

It is recommended that the cabin in which the transmitter package for transmitting the external antenna is installed is selected by considering the following operating conditions.

2.2 Signaling Protocol The proposed signaling method holds the key to flexibility, reliability and means to combat real life conditions.

Desirable considerations in implementing a signaling plan are the ability to identify host vehicles, the ability to have multiple host vehicles function in one location, and the ability for one host vehicle to interact with other host vehicles even during normal operation. The ability to detect radio frequencies, fail-safe functionality, and only one radio frequency to be utilized for radio spectrum management.

These considerations, which provide current engineering capabilities, lead to the desired solution without having too many degrees of freedom.

The signaling protocol can be divided into two requirements.

A. The use of a single frequency in interleaving system operation and the need to operate multiple host vehicles at one location points to the need for time-shared transmission. An example of this incremental process would show the warning transmitter turning on in 0.2 seconds and turning off in 1.2 seconds. Actual testing is subject to operational timing results.

B-coding is modulated by a data code sequence that identifies the host vehicle while the transmitter is turned on for a short period of time. The prominent reason for modulation is to prevent bad alarms from being decoded at the receiver due to interference and noise. The final selection of data sequences is determined by the actual frequency allocation from the traffic authority.

Commercial systems include methods for forward error correction in transmitted code sequences.

This provides security in decoded vehicle identification with existing interference. Error correction is disabled with a simple "warning-only receiver."

2.3 Hardware Requirements Hardware requirements are constrained by various electronic standards, including those of automobile manufacturers.

The specification is made as open as possible to allow hardware and software designers to work by creating engineering as well as market dependent variations in the implementation.

Radio frequency tolerance is 2 ppta frequency, -1 dB output, center frequency emission designation (10F3) Data modulation PM Selectable data sequence generator for Coanda vehicle identification Automotive power DC operation 8-24 Volt Fused Subrigid or Negative Earth Supply Current Below 1 Ampere Main Power 220-280 or 100-120 Volts Environment Operating Temperature -30°C to +60°C Storage Temperature -40°C to +85°C Humidity 0-95% Physical Water Proof (external mount) ABS resin (cabin mount) 3. Warning receiver 3.1 Ink connection with host vehicle There are three warning receiver designs.

A. Transmitter and Receiver with Full Display for Emergency Vehicles B. Selectable Display - O-Diple (Dedicated)
Receiver with C1 Audible Warning (Dedicated) The receiver is powered from the vehicle's accessory line and is separately fused. Cannot be disconnected from driver controls (except ignition switch).

The output line can be connected to an external lamp or buzzer for external process control.

The scheme of instructions issued from the receiver can take the following form. Cost is a limiting factor but all possibilities must be explored.

display Car phone display or clock techniques Alphanumeric similar to jutsu Display (8 digits) These displays also include: So it's good.

Police, Fire, Ambulance, Railway, Flashlights in service cabins (optional) Sound generator that operates for 5 seconds and then switches to a ticking mode to indicate the duration of the warning 3.3 Hardware Requirements Hardware requirements are It is constrained by various electronic standards, including those of car manufacturers.

The specifications are kept open to the extent possible to allow hardware and software designers to work in accordance with current engineering as well as market dependent changes.

Radio Frequency Central Frequency Data Modulation FM Sensitivity 85 dB Detection Threshold EST Decoding Selectable Display with Vehicle Identification or Audible Warning Only Vehicle Output DC Operation 6-24 Volts Fuse Supply Positive or Negative Ground Supply 1 Ampere Current output Contact closure to earth to allow control of external lights or buzzers Environmental operating temperature -30°C to +80°C Storage temperature -40°C to +85°C Humidity 0 to 95% Physical water proof (external mount ) ABS resin (cabin mount) 4. Driving characteristics 4.1 In overcrowded mode emergency situations, it is expected that many vehicles will each have a warning transmitter. The strength of the warning system will be determined through actual testing.

Operation in overcrowding results in transmitters being operated at completely different times. This is what happened and allows for the separation of each transmission. Data is lost when two transmitters come within close proximity (the use of error correction coding prevents this data loss). Sufficient data can be received to provide a warning that prevents vehicle identification.

This scheme allows the host vehicle to listen to other warning transmitters while its own transmitter is turned off. This allows all vehicles to receive warnings.

4.2 The user of the user-operated warning system may allow the user to select between an audible warning only or a display with an audible warning, but does not need to be aware that the item is equipped.

4.3 Documents Documents included with the product include:

i.e. installation guide trouble guide User manual (all users) service manual (For factory/repair center only) The claims are a part of the disclosure of this specification.

Modifications and adaptations may be made to what has been described above without departing from the spirit and scope of the invention, including all novel features and combinations of features disclosed.

[Brief explanation of the drawing]

1 and 2 are block diagrams of the first system. 3 and 4 are block diagrams of the second system. FIG. 5 is a block diagram of the receiving module. FIG. 6 is a block diagram of a modified module. Reference symbols: 1...Pulse generator 2...Transmitter ゛3...Flashlight 6...Alarm receiver 7...Indicator 8...Curage No. 21.31 ・Power regulator 53・・Mixer 23 ・Code generator 24 ・Clock controller 26 ・RP generator 27 ・0N10FF switch 32.62 ・Basic data decoder 36.66 ・Audio generator 38.68 ・Light source 54... Local oscillator 56... Amplifier detector 64... Alphanumeric character decoder 71...
・Display 24.33 ・Clock controller

Claims (1)

Claims: 1) a transmitter, cooperating with an emergency vehicle or a warning device, for transmitting a first signal, and a transmitter cooperating with a road vehicle, receiving said first symbol, resulting in the use of said road vehicle; emergency or alarm signal system consisting of a receiver that generates a second signal to notify the person 2) The system according to claim 1, wherein the transmitter and receiver have an effective range of 100 m or more and 1000 m or less. 3) The system according to item 1 of the patent scope, wherein the transmitter and receiver have an effective range of 200 m or more and 500 m or less. 4) A transmitter according to any one of claims 1 to 3, for transmitting the first signal to activate other signal means such as light, air or other sound generating means. system. 5) The receiver is placed under conditions to receive the first signal and generate the second signal whenever the road vehicle is used. system described in. 6) The receiver comprises a car radio, tape player or other audio reproduction device for a motor vehicle, and when the second signal is generated, the receiver at least reduces or reduces the signal emitted by said car radio tape player or other audio reproduction device. 6. A system according to any one of claims 1 to 5, wherein there are means for inhibiting. 7) The receiver utilizes amplifier and/or speaker means of a car radio, tape player, or other audio reproduction device used in a motor vehicle.
The system according to any one of Item 6. 8) The transmitter or receiver according to any one of items 1 to 7. 9) Substantially the same emergency or alarm signal system or transmitter or receiver as depicted in any of the accompanying drawings. 10) The objects, ideas, parts, elements, steps,
Characteristics, methods, manufacturing methods, mixtures and ingredients.