GB2226847A - Car door lock controller - Google Patents
Car door lock controller Download PDFInfo
- Publication number
- GB2226847A GB2226847A GB8829006A GB8829006A GB2226847A GB 2226847 A GB2226847 A GB 2226847A GB 8829006 A GB8829006 A GB 8829006A GB 8829006 A GB8829006 A GB 8829006A GB 2226847 A GB2226847 A GB 2226847A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lock
- unlock
- automobile
- alarm
- doors
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/008—Alarm setting and unsetting, i.e. arming or disarming of the security system
-
- 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
- B60R25/1001—Alarm systems associated with another car fitting or mechanism, e.g. door lock or knob, pedals
Abstract
A universal interface for controlling power door locks with an automobile burglar alarm which automatically locks or unlocks any automobile's power door lock/unlock system in response to the arming and disarming of any automobile burglar alarm, including timers to control the length of the lock and unlock signals, a latching memory circuit to remember what the last operation of said interface was in order to determine whether to lock or unlock the automobile's doors, and a circuit to prevent any signal from interrupting the locking operation but allow a lock signal from said alarm to have priority over an unlock signal. A-B connects to the battery. C-D to the arm/disarm output from the alarm. E-H transmit lock/unlock signals to the door locks following presettable delays determined by timers T1/T2 and polarity by connections I, F, G and J. <IMAGE>
Description
A universal interface for controlling power door locks with an automobile burglar alarm
This invention relates to a universal interface for controlling power door locks with an automobile burglar alarm. In general, an automobile burglar alarm is designed to deter attempts of unauthorized entry into or vandalism to an automobile, and to alert the car's owner and/or passers-by of such attempts on the car.
But if the owner does not remember to lock the car's doors, a would-be thief or vandal may be more able to by-pass the car's burglar alarm.
Interfacing an automobile burglar alarm to an automobile's power door lock/unlock system is a difficult problem for the installers of automobile burglar alarm for two reasons. First, there is a wide variety of automobile burglar alarms available in the market, and very few offer consistent outputs which can interface with an automobile's power door lock/unlock system. Second, there is a wide variety of automobile power door lock/ unlock systems, all of which require different connections to operate.
In view of the above defects, the inventor has invented a device which can allow any type of automobile burglar alarm to connect to any type of automobile power door lock/unlock system. Such a device will allow any automobile burglar alarm to lock any automobile power door lock/unlock system when said alarm arms, and, for convenience, allow said alarm to unlock said door lock/unlock system when said alarm disarms. Such an invention offers two benefits to automobile burglar alarm owners: the convenience of locking and unlocking the car's doors from outside the vehicle, and the security of knowing that when the automobile burglar alarm is armed the automobile's doors are locked.
The present invention provides automatic locking or unlocking of any automobile's power door lock/unlock system in conjunction with the arming and disarming of any automobile burglar alarm. When said automobile burglar alarm is armed, a signal is transmitted to relays in the present invention to lock the car's doors. When said automobile burglar alarm is disarmed, a signal is transmitted to relays in the present invention to unlock the car's doors. The present invention will generate a lock or unlock signal of the appropriate length necessary to lock or unlock the car's doors. Note that the length of the lock and unlock signal is programmable according to the type of door lock system in a particular automobile.
Embodiments of the invention are described by way of example, with reference to the drawings, in chich:
Figure 1 is a block diagram of the present invention;
Figure 2 is a block diagram of a preferred embodiment according to the present invention;
Figure 3 is a block diagram of another preferred embodiment according to the present invention;
Figure 4 is a block diagram of another preferred embodiment according to the present invention;
Figure 5 is a block diagram of another preferred embodiment according to the present invention;
Figure 6 is a circuit diagram of a preferred embodiment according to the present invention.
Figure 7 is a circuit diagram of another preferred embodiment according to the present invention.
Detailed descriptions of the block diagrams
In order to fully understand the use of the present invention, various methods for installing the present invention will be detailed with reference to the abovedescribed accompanying drawings.
Figure 1 is a simple block diagram of the present invention. Points A and B are connected to battery positive and negative terminals respectively, to provide power for the present invention. Point C connects to an automobile burglar alarm output which sends a signal when said alarm is armed/disarmed to lock/unlock the automobile's doors. Point D connects to. an output from said alarm which sends a signal when said alarm is armed to lock said doors. Point E on relay RY1 sends either positive or ground to unlock said doors, depending on whether points F and I are connected to the battery positive or negative terminals. Point H on relay RY2 sends either positive or ground to lock said doors, depending on whether points G and J are connected to the battery positive or negative terminals.Points F, G, I, and J will connect to either the battery's positive or negative terminals, depending on the type of power door lock system is in the said automobile.
Timer T1 sets the length of time that relay RY1 makes contact between points E and I to unlock said doors.
Timer T2 sets the length of time that relay RY2 makes contact between points H and J to lock said doors. Note that the lock and unlock times are programmable according to the type of power door lock/unlock system in said automobile. For the purpose of this patent application, said times are programmable via the loops, though other types of switches may be employed. Timer T1 time (unlock time) is controlled via loop L1, and timer T2 time (lock time) is controlled via loop L2.
Figure 2 is a block diagram of a preferred embodiment according to the present invention. A simplified diagram of the present invention is shown at the right of figure 2. The left of figure 2 is one type of automobile door lock/unlock system. In said lock/unlock system, switches SW1 and SW2 are normally connected to battery ground, and so door lock motors M1 and M2 are at rest. To unlock said doors, switch SW1 sends positive energy through wire W1 to said door lock motors, causing said doors to unlock (note that wire W2 remains in the battery ground state). To lock said doors, switch SW2 sends positive energy through wire W2 to said door lock motors, causing said doors to unlock (note that wire W1 remains in the battery ground state).
The present invention can be connected to the power door lock/unlock system illustrated in Figure 2 in such a way that said doors will lock and unlock automatically when an automobile burglar alarm arms and disarms, and yet said doors can also be locked and unlocked manually via switches SW1 and SW2. Wires W1 and W2 are cut. The switch side of wire W1 is connected to point F of the present invention, and the door lock/unlock motor side of wire WI is connected to point E of the present invention. The switch side of wire W2 is connected to point G of the present invention, and the door lock/ unlock motor side of wire W2 is connected to point H of the present invention. Points I and J of the present invention are connected to the battery positive terminal.
Now, to unlock said doors manually, the owner can use switch SW1 to send positive energy via points E and F and relay RY1 of the present invention to said door lock motors. To lock said doors manually, the owner can use switch SW2 to send positive energy via points G and H and relay RY2 of the present invention to said door lock motors. When said alarm disarms, the contact in relay
RY1 moves from point F to point I for the pre-determined time duration of timer T1 (not shown in Figure 2) to send positive energy to cause said door lock motors to unlock. When said alarm arms, the contact in relay RY2 moves from point G to point J for the pre-determined time duration of timer T2 (not shown in Figure 2) to send positive energy to cause said door lock motors to lock.
Figure 3 is a block diagram of another preferred embodiment of the present invention, and illustrates another common type of automobile power door lock/unlock system.
Figure 3 and the operation of the door lock/unlock system contained therein are the same as in Figure 2, except that switches SW1 and SW2 are normally connected to the battery positive terminal, and switch to battery ground to lock and unlock the automobile's doors. The present invention is connected to said power door lock/unlock system as shown in Figure 2, except that points I and J are connected to the battery negative terminal. The present invention, when connected as shown in Figure 3, will provide the necessary outputs.
Figure 4 is a block diagram of another preferred embodiment of the present invention, and illustrates another common type of automobile power door lock/unlock system.
Figure 4 and the operation of the door lock/unlock system contained therein are similar to Figure 2, except that switches- SW1 and SW2 are normally not connected to either the battery positive or negative terminal. Instead to lock the automobile's power doors, switch SW1 is connected to the battery positive terminal, and switch
SW2 to battery ground. To unlock the automobile's power doors, switch SW1 is connected to the battery negative terminal, and switch SW2 to the battery positive terminal.
The present invention, when connected as shown in Figure 4, will provide the necessary outputs.
Figure 5 is a block diagram of another preferred embodiment of the present invention, and illustrates a rather uncommon type of automobile power door lock/unlock system.
In Figure 5, a vacuum pump controls the operation of the automobile's power door lock/unlock system. In this case, a negative signal sent via wire W1 will cause the doors to lock, and a positive signal sent via wire W1 will cause the doors to unlock. The present invention, when connected as shown in Figure 5, will provide the necessary signals.
Detailed description of the circuit diagrams
Figure 6 and Figure 7 are control circuit diagrams of preferred embodiments according to the present invention.
Referring to Figure 6, the components within the dotted line form a voltage regulator circuit to provide a regulated voltage to the present invention. Point C is connected to some output on the automobile burglar alarm which gives a ground output when said alarm is disarmed or, in some cases, armed. Point D is connected to some output on said alarm which gives a ground output, when said alarm is armed. Of course, inventers can be connected to points C and D if said alarm gives voltage outputs for locking and/or unlocking, making the present invention suitable for most automobile burglar alarms.
As will be shown below, when point D receives a ground signal from said alarm, the present invention will always lock the automobile's power door locks, regardless of whether the last operation of the present invention was to lock or unlock said doors. However, the operation of said door locks when point C receives a ground signal from said alarm depends on what the last operation of the present invention was. If the last operation of the present invention was to lock said doors, then when point
C receives a ground signal from said alarm, the present invention will cause said doors to unlock, and vice versa.
This means that point C can receive both lock and unlock signals from said alarm, while point D will receive only lock signals from said alarm.
If the last operation of the present invention was to unlock said doors, or when the present invention is first used after power is applied, then when point C receives a ground signal from said alarm, output Q of
IC601 becomes "HI" and output Q-bar becomes "LO." The "HI" from output Q of IC601 passes via Q605 and Q606 to drive relay RY602 to lock said doors. C609, R611, and R612 control the locking time period during which relay RY602 makes contact to lock said doors. During locking time period, R609 and C607 act to block the input signal C of IC601 fromchanging the state of Inc601.
In this way, while said doors are locking during said locking time period, the present invention will not receive noise from said automobile or any other signal from said alarm which might cause said doors to unlock.
If the last operation of the present invention was to lock said doors, then when point C receives a ground signal from said alarm, output Q-bar of IC601 becomes "HI" and output Q becomes "LO." The "HI" from output
Q-bar of IC601 passes via Q602 and Q603 to drive relay
RY601 to unlock said doors. C610, R613, and R614 control the unlocking time period during which relay RY602 makes contact to unlock said doors. Note that during this unlocking time period, R609 and C607 act to block the input signal C of IC601 from changing the state of IC601.
If the last operation of the present invention caused said doors to lock, then output Q of IC601 is "HI" and output Q-bar is "LO." If point D receives a ground signal from said alarm, then Q601 outputs "HI" to input
S of IC601. Therefore, output Q of IC601 remains "HI".
At the same time, the "HI" from Q601 also passes to input C of IC602, which turns output Q of IC602 to "HI."
This "HI" is passed via C611, R611, and R612 to lock said doors as above.
If the last operation of the present invention caused said doors to unlock, then output Q-bar of IC601 is "HI" and output Q is "LO." If point D receives a ground signal from said alarm, then Q601 outputs "HI" to input
D of IC601. Therefore, output Q of IC601 becomes "HI," and outout Q-bar becomes "LO," which causes said doors to lock as above.
Note that whenever IC601 outputs a "HI" through Q-bar to unlock the doors, a "HI" is also passed to input R of
IC602. This causes output Q of IC602 to become "LO" in effect resetting IC602 so that it will lock said doors in the event that the last operation of the present invention was to lock said doors and point D receives a negative signal from said alarm.
C609, R611 and R612 control the locking time period, and
C610, R613, and R614 control the unlocking time period.
Note that these two time periods can be programmed according to the type of power door lock/unlock system in said automobile via wire loops. Typically, most automobiles require either 0.7 or 3.5 seconds for both the lock and unlock functions, but this time can be baried according to the application.
To summarize the above, point C of the present invention will receive a ground signal from said alarm for both locking and unlocking. This allows an automotive burglar alarm with a common arm/disarm signal (such as a "beep" of the siren) to be able to control both locking and unlocking of said automobile's power doors. Furthermore, point C can be connected to a push-button or remote control device to allow the present invention to be used to lock and unlock said doors while said automobile is being driven. Point D, on the other hand, always locks said doors when it receives a ground signal from said alarm. This allows the alarm to insure that all doors are locked, regardless of whether they originally were locked or unlocked, when the alarm is armed.
Now refer to Figure 7, which is a circuit diagram for another preferred embodiment of the present invention.
In this Figure, points C and D operate as in Figure 6.
Relay RY701 performs the lock operation of the present invention, and relay RY702 performs the unlock operation.
R707, R708, R709 and C704 form the lock timer, which can be programmed as in Figure 6. R710, R711, R712 and C705 form the unlock timer, which can be programmed as in
Figure 6. IC705 and IC706 form a latching circuit for use as a memory to remember whether the last operation of the present invention was a lock or unlock operation.
If the output of IC706 is "LO" and the output of IC705 is "HI", this indicated that the last operation of the present invention was to lock an automobile's power door lock/unlock system. In this case, the "HI" of IC705 prevents IC707 from sending an unwanted unlock command.
If the output of IC706 is "HI" and the output of IC705 is "LO," this indicates that the last operation of the present invention was to unlock said door lock/unlock system. In this case, the "HI" of IC706 prevents IC704 from passing an unwanted lock command.
If the last operation of the present invention was to unlock said doors, or if the present invention is first used after power is applied, when point C receives a ground signal from an automobile burglar alarm, then the pulse generating circuit of R701, R702 and C701 sends a "HI" to cause IC706 of said latching circuit to output a "LO" to indicate that the last operation of the present invention was to lock the doors. This "LO" is passed to IC704. At the same time, a "HI" is passed from the above-described lock timer to IC701 for said timer's pre-determined locking time period. IC701 then sends a "LO" to IC704, which then passes a "HI" through Q702 to drive relay RY701 to lock said doors. The output of IC704 lasts until the end of the said locking time period.
If the last operation of the present invention was to lock said doors, then when point C receives a ground signal from said alarm, then said pulse generating cirtuit sends a "HI" to cause IC705 of said latching circuit to output a "LO" to indicate that the last operation of the present invention was to lock the doors.
This "LO" is passed to IC707. At the same time, a "HI" is passed from the above-described unlock timer to
IC703 for said timer's pre-determined locking time period. IC703 then sends a "LO" to IC707, which then passes a "HI" through Q703 to drive relay RY702 to unlock said doors. The output of IC701 lasts until the end of the said unlocking time period.
If the last operation of the present invention was to lock said doors, then if point D receives a ground signal from said alarm, a "LO" is sent to Q701. A "HI" signal is passed via D707 to IC706, but this does not cause the above-described latching circuit (IC705 and IC706) to change state. Therefore, IC706 continues to output a "LO" to IC704. At the same time, Q701 sends a "HI" via
D704 and C704 to IC701. IC701 outputs a "LO" to IC704, which then sends a "HI" via Q702 to drive relay RY701 to lock said doors for the locking time period determined by the locking timer described above.
If the last operation of the present'invention was to unlock said doors, then if point D receives a ground signal from said alarm, a "LO" is sent to 0701. A "HI" signal is passed via D707 to IC706, which causes the above-described latching circuit (IC705 and IC706) to change state. Therefore, IC706 outputs a "LO" to IC704.
At the same time, Q701 sends a "HI" via D704 and C704to IC701. IC701 outputs a "LO" to IC704, which then sends a "HI" via Q702 to drive relay RY701 to lock said doors for the locking time period determined by the locking timer described above.
To summarize the above point C of the present invention will receive a ground signal from said alarm for both locking and unlocking. This allows an automotive burglar alarm with a common arm/disarm signal (such as a "beep" of the siren) to be able to control both locking and unlocking of said automobile's power doors. Furthermore, point C can be connected to a push-button or remote control device to allow the present invention to be used to lock and unlock said doors while said automobile is being driven. Point D, on the other hand, always locks said doors when it receives a ground signal from said alarm. This allows the alarm to insure that all doors are locked, regardless of whether they originally were locked or unlocked, when the alarm is armed.
Claims (6)
1. A universal interface for controlling power door locks
with an automobile burglar alarm, comprised of:
- a means to receive a signal or signals from said
alarm which can be interpreted as instructions to
lock or unlock an automobile's doors;
- a locking and unlocking controller to determine
whether said signal or signals received from said
alarm is (are) a lock or an unlock signal;
- two relays, one to send a signal or power to cause
an automobile's power door lock/unlock motors to
lock when said alarm arms, and another to cause said
motors to unlock when said alarm disarms; and
- two timers, one each to control the length of time
each of the above-mentioned relays is in operation
and programmable according to the needs of the
specific power door lock/unlock system;
By means of said circuits to receive a lock or unlock
signal from an automobile burglar alarm and generate
a corresponding lock or unlock signal of the appropriate
length to an automobile's power door lock/unlock system
to lock or unlock said automobile's doors.
2. A universal interface for controlling power door locks
with an automobile burglar alarm as claimed in Claim
1 wherein said interface will allow any automotive
burglar alarm which outputs some signal or signals
upon arming and disarming to lock and unlock an
automobile's power door lock system.
3. A universal interface for controlling power door locks
with an automobile burglar alarm as claimed in Claim
1 wherein said interface allows said alarm to cause
the locking and unlocking of any automobile's power
door lock system regardless of what type of power
door lock system said automobile is equipped with.
4. A universal interface for controlling power door locks with an automobile burglar alarm which includes
two types of inputs to connect to said alarm;
- an input which can receive both lock and unlock
signals from said alarm and, by emans of a latching
memory circuit, determine whether said automobile's
doors should lock or unlock; and
- an input which can receive a definite lock signal
from said alarm to ensure that said automobile's
doors are definitely locked when said alarm is armed.
5. A universal interface for controlling power door locks
with an automobile burglar alarm as claimed in Claim
4 wherein said interface locks out lock and unlock
signals from said alarm during the time that said
interface is causing the automobile's doors to lock, but which allows a lock signal to immediately start
a lock operation even when said interface is in the
process of unlocking said doors.
6. - A universal interface for controlling power door locks with
an automobile burglar alarm substantially as herein
described with reference to the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8829006A GB2226847A (en) | 1988-12-12 | 1988-12-12 | Car door lock controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8829006A GB2226847A (en) | 1988-12-12 | 1988-12-12 | Car door lock controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8829006D0 GB8829006D0 (en) | 1989-01-25 |
| GB2226847A true GB2226847A (en) | 1990-07-11 |
Family
ID=10648366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8829006A Withdrawn GB2226847A (en) | 1988-12-12 | 1988-12-12 | Car door lock controller |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2226847A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2689927A1 (en) * | 1992-03-13 | 1993-10-15 | Rascar Raymond | Central locking control device for vehicle - has link to alarm so that arming alarm circuit also activates central locking mechanism |
| GB2283276A (en) * | 1993-07-15 | 1995-05-03 | David Hyman | Vehicle security system |
| US5699685A (en) * | 1995-08-18 | 1997-12-23 | Kiekert Ag | Central lock system for an automotive vehicle with satellite processors at respective locks |
-
1988
- 1988-12-12 GB GB8829006A patent/GB2226847A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2689927A1 (en) * | 1992-03-13 | 1993-10-15 | Rascar Raymond | Central locking control device for vehicle - has link to alarm so that arming alarm circuit also activates central locking mechanism |
| GB2283276A (en) * | 1993-07-15 | 1995-05-03 | David Hyman | Vehicle security system |
| GB2283276B (en) * | 1993-07-15 | 1997-03-19 | David Hyman | Vehicle security system |
| US5699685A (en) * | 1995-08-18 | 1997-12-23 | Kiekert Ag | Central lock system for an automotive vehicle with satellite processors at respective locks |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8829006D0 (en) | 1989-01-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |