Personal security system with transmitter test mode

• US 5,467,074 A
• Filed: 09/20/1993
• Issued: 11/14/1995
• Est. Priority Date: 12/18/1992
• Status: Expired due to Term

• Current Assignee: Detection Systems, Inc. (IKUSI - Angel Iglesias SA)
• Original Assignee: Detection Systems, Inc. (IKUSI - Angel Iglesias SA)
• Inventors: Pedtke, Daniel F.
• Primary Examiner(s): Crosland, Donnie L.
• Application Number:
  US08/126,841
• Time in Patent Office: 785 Days
• Field of Search: 340/539, 340/531, 340/514, 340/825.06, 340/825.69, 340/825.72, 455/67.1, 455/68, 455/70, 455/38.1, 455/38.2, 455/92, 455/95, 455/100, 455/54.2, 341/173, 341/174, 341/176
• US Class Current: 340/539.11
• CPC Class Codes: G08B 25/009 Signalling of the alarm condition to a substation whose identity is signalled to a central station, e.g. relaying alarm signals in order to extend communication range
• CPC Class Codes: G08B 29/12 Checking intermittently signalling or alarm systems

Abstract

A portable transmitter produces an emergency signal including a personal identification number and an auxiliary code. The auxiliary code may be a test bit which, when set, indicates that the emergency signal was activated in a test mode and that an emergency condition did not exist. Activation of the test mode is accomplished by the same systems required to activate the emergency signal to provide full testing. The transmitter is part of a security system including a plurality of portable transmitters and fixed receivers. The transceivers issue either an alarm activating signal or a test signal depending on the test bit in the auxiliary code. A successful test is discernible to the user from the vicinity of the transceiver.

Claims

1. A hand portable transmitter for use with a personal security system;

said transmitter comprising;

transmitting means (1) operated in an alarm state for transmitting an emergency signal to initiate a system alarm and (2) operated in a test state for transmitting a test signal differentiated from said emergency signal, to initiate a system test; and

,

selectively-actuated switch elements (1) actuated in a first mode for operating said transmitting means in said alarm state and (2) actuated in a second mode for operating said transmitting means in said test state, said transmitting means being operated in said test state by actuation of at least the same switch elements of the transmitter as are required to operate the transmitting means in said alarm state.

2. A hand portable transmitter as defined in claim 1, wherein said transmitting means is operated:

in the alarm state to produce an identification code unique to the portable transmitter; and

in the test state to produce both an identification code unique to the portable transmitter and an auxiliary code set to identify the test state.

3. A hand portable transmitter as defined in claim 2, wherein said auxiliary code is a test bit which, when set, indicates that the transmitting means was operated in said test state, and that an emergency condition did not exist.

4. A hand portable transmitter for use with a personal security system having an emergency condition and a test condition;

said transmitter comprising;

transmitting means having an alarm mode for producing an emergency signal to initiate said emergency condition and a test mode for producing a test signal to initiate said test condition;

first operator-controlled means for actuating said transmitting means in said alarm mode and in said test mode; and

,

second operator-controlled means cooperating with said first operator-controlled means for selecting said test mode, whereby said test mode requires actuation of at least as many of said first and second operator controlled means as said alarm mode.

5. A hand portable transmitter as defined in claim 4, wherein said transmitting means is operated:

in the alarm mode to produce an identification code unique to the portable transmitter; and

in the test mode to produce both an identification code unique to the portable transmitter and an auxiliary code set to identify the test mode.

6. A hand portable transmitter as defined in claim 5, wherein said auxiliary code is a test bit which, when set, indicates that the transmitting means was operated in said test state, and that an emergency condition did not exist.

7. A hand portable transmitter as defined in claim 4, wherein said first and second operator-controlled means are opposed first and second buttons, respectively, both of said first and second buttons operated in one manner for selecting said alarm mode and both of said first and second buttons operated in a different manner for selecting said test mode.

8. A personal security system including a central station, a plurality of transceivers for relaying representations of alarm signals and differentiated test signals to said central station, and a plurality of hand-holdable portable radio frequency transmitters;

each of said portable transmitters comprising;

transmitting means (1) operated in an alarm state for transmitting said transmitter alarm signals to said transceivers, and (2) operated in a test state for transmitting said transmitter test signals to said transceivers; and

transmitter-located switch elements for selecting between said alarm state and said test state, respectively, said switch elements having (1) a first sequence of actuation for operating said transmitting means in said alarm state and (2) a second sequence of actuation for operating said transmitting means in said test state, said transmitting means being operated in said test state by actuation of at least the same switch elements of the transmitter required to operate the transmitting means in said alarm state.

9. A personal security system as set forth in claim 8, wherein said transmitting means is operational in said alarm state and in said test state to produce an identification code unique to the portable transmitter.

10. A security system including multiple portable transmitters and multiple fixed receivers, said receivers each having a monitoring range and monitoring a predetermined frequency;

said system comprising;

said portable transmitters have first and second modes of operation for transmitting at said predetermined frequency, said first mode transmitting an emergency signal and said second mode transmitting a modified signal to indicate a test, said portable transmitters using at least the same electrical components in said second mode as said first mode;

said receivers together monitoring a geographical area greater than said monitoring range, and having first and second modes of operation, respectively, responding throughout same area to successful receipt of said emergency and modified signals, said receivers in said first mode issuing an alarm signal and in said second mode issuing a test signal.

11. A security system according to claim 10, wherein said portable transmitter uses at least the same mechanical components in said second mode as said first mode.

12. A personal security system comprising:

a portable transmitter having first and second states of operation, said transmitter in said first state transmitting an emergency signal and in said second state transmitting a modified signal;

switch elements in said transmitter for selecting between said first state and said second state, respectively, said switch elements having (1) a first sequence of actuation for operating said transmitter in said first state and (2) a second sequence of actuation for operating said transmitter in said second state, said first sequence including actuation of at least the same switch elements actuated in said second sequence;

a transceiver having first and second transceiver modes of operation, respectively, responding to successful receipt of said emergency and modified signals, said transceiver in said first transceiver mode issuing an alarm and in said second transceiver mode conducting a test.

13. A security system according to claim 12, wherein said switch elements include first and second actuators, both of which are actuated in said first actuation sequence and in said second actuation sequence.

14. A security system according to claim 12, wherein said switch elements include first and second switch elements both actuated in a first manner in said first actuation sequence and in a second manner different from said first manner in said second actuation sequence.

15. A security system according to claim 12, wherein said transceiver in said second transceiver mode issues a signal discernible from the vicinity of said transceiver to indicate a successful test.