NL7612896A - Automatic vehicle alarm system - uses battery and horn as sources of power and sound - Google Patents
Automatic vehicle alarm system - uses battery and horn as sources of power and soundInfo
- Publication number
- NL7612896A NL7612896A NL7612896A NL7612896A NL7612896A NL 7612896 A NL7612896 A NL 7612896A NL 7612896 A NL7612896 A NL 7612896A NL 7612896 A NL7612896 A NL 7612896A NL 7612896 A NL7612896 A NL 7612896A
- Authority
- NL
- Netherlands
- Prior art keywords
- horn
- sound
- alarm system
- vehicle
- sources
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/10—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device
- B60R25/1004—Alarm systems characterised by the type of sensor, e.g. current sensing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/10—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device
- B60R2025/1013—Alarm systems characterised by the type of warning signal, e.g. visual, audible
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Human Computer Interaction (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The automatic acoustic and optical vehicle alarm system protects both vehicles against theft and taxi-drivers from assault. The vehicle battery is used as the power source, and the horn as the acoustic source. The horn can be arranged to emit a specific signal, consisting of a number of short signals, directly followed by a long one lasting three or four seconds, and then repeated. Means can also be provided to sound the horn at a set time after a particular circuit is energised. An operational amplifier can determine the difference between a reference voltage and the actual battery voltage. There can be a press-button beside the drivers seat, remaining activated once pressed. The system can be arranged so that the alarm can only be silenced by a switch outside the vehicle.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7612896A NL7612896A (en) | 1976-11-19 | 1976-11-19 | Automatic vehicle alarm system - uses battery and horn as sources of power and sound |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7612896A NL7612896A (en) | 1976-11-19 | 1976-11-19 | Automatic vehicle alarm system - uses battery and horn as sources of power and sound |
Publications (1)
Publication Number | Publication Date |
---|---|
NL7612896A true NL7612896A (en) | 1978-05-23 |
Family
ID=19827257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7612896A NL7612896A (en) | 1976-11-19 | 1976-11-19 | Automatic vehicle alarm system - uses battery and horn as sources of power and sound |
Country Status (1)
Country | Link |
---|---|
NL (1) | NL7612896A (en) |
-
1976
- 1976-11-19 NL NL7612896A patent/NL7612896A/en not_active Application Discontinuation
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BV | The patent application has lapsed |