GB2368704A - Wireless child distance monitoring alarm system with anti-tamper features - Google Patents

Abstract

The system comprises a transmitter device fixed to the child's wrist or ankle and a receiver and alarm device held by a guardian. If the child wanders out of the systems' set distance range from the guardian, the receiver alarm is triggered. The alarm may also be triggered if the transmitter is switched off or tampered with or a low battery condition occurs. The guardian receiver alarm may produce a visual, audible or vibrating alarm and may have a solar cell power source, a distance range setting control, an alarm test button a low battery warning and an on/off button. The child transmitter may include anti-tamper features to detect unfastening of a fixing strap or detect removal of the device from the child via a pressure switch. The guardian receiver device may also comprise a mobile phone.

Description

CHILD"OUT OF RANGE"ALERT SYSTEM This invention relates to a child"out of range"alert system.

The system comprises of two separate pieces of electronic equipment. Each piece of electronic equipment is housed in a separate waterproof jacket. These two pieces of electronic equipment are so designed as to represent a transmitter sending a signal and a receiving device so designed as to recognise this signal and hence activate an alert warning system. The two devices are battery operated with a solar cell battery back up facility. According to this present invention there is provided one device known as the transmitter and a second device known as the receiver monitor.

Each device is designed so as to be worn on the wrist or around the ankle. As shown in the drawings.

The transmitter is worn by the child whose whereabouts are being monitored.

The receiver monitor is worn by the parent or guardian who is responsible for the safety and well-being of the child in question.

The transmitter transmits a unidirectional signal to the receiver monitor. The signal will cause the red L. E. D. light emitting diode to keep flashing on the face of the monitor. Send out an audible sound and cause a vibration of the receiving monitor device. These functions will alert the parent or guardian who is wearing the monitor.

This"alert"signal will be programmed to operate when any of the following conditions arise in the transmitting device worn by the child.

Conditions as follows. i. e.

1. The child has wandered beyond the pre-determined range set by the parent or guardian.

2. The tamper switch incorporated in the strap fastener securing the transmitting device to the child's wrist or ankle, has been opened or interfered with.

3. The pressure switch has been activated by illicit removal of the transmitting device from the child.

4. The"alert"signal will operate if transmitter is switched off independently of receiver monitor.

5. The"alert"signal will operate when power starts going low.

6. The"alert"signal will continue until the receiver monitor is switched to the off position.

7. The test button will operate the alert signal when depressed and will return the system to normal status when released.

The receiving monitor has exclusive compatibility with signal sent out by the transmitter device in the system.

1. The receiving monitor has a green coloured L. E. D. light emitting diode"power on" display. This will flash on low power.

2. The receiving monitor has an"out of range"alert system built in, which when activated, will cause a) The red L. E. D. light emitting diode to flash continuously. b) The audible sound to operate. c) The device to vibrate.

3. This alert system will operate also when the following occurs a) The tamper switch on the transmitter worn by the child has been opened. b) The illicit removal of the transmitter from the child. c) The receiver monitor is switched off independently of transmitter. d) When power is running low.

4. The test button on the receiver monitor will operate the alert signal when depressed and will return the system to normal status when released.

A function switch or switches carrying out these operations on both devices will be operated software built into both the transmitter and monitoring receiver.

All illustrations of the devices are shown in the accompanying drawings.

Fig 1. illustrates the following The front/isometric view of the transmitting device worn by the child and depicting the following i. e.

1. The range controller calibrated in metres situated in the centre of the face of the device.

2. The green L. E. D. light emitting diode"power on"indicator.

3. The solar cell.

4. The test button on side of device.

5. The on/off switch on the opposite side of device.

On/off switch is a two position slide switch and must be depressed first to operate Fig 2. illustrates the back view of the transmitter worn by the child and depicts the following i. e.

1. The pressure switch built into back of the device activated by removal of device from child's body.

2. The tamper switch built into the fastener of the strap which is activated when undone.

3. The dotted oblong depicting a piece of conductive material completing the electrical circuit when the tamper switch fastener is closed via the built in electrical conductors in the strap and depicted by dotted lines going back to the body of the transmitter.

Fig 3. illustrates the front/isometric view of the receiver monitor as worn by the parent or guardian and depicts the following i. e.

1. The red alert L. E. D. light emitting diode in centre of face.

2. The green L. E. D. light emitting diode"power on"indicator.

3. The test button on side of device.

4. The on/off switch on the opposite side of device.

The on/off switch is a two position slide switch and must be depressed first to operate.

5. The speaker.

6. The solar cell.

Claims (6)

1. CLAIMS 1. A transmitting device worn by a child on the wrist or ankle as described in the accompanying specification.
2. 2. A receiving monitor device worn by a parent or guardian on the wrist or ankle as described in the accompanying specification.
3. 3. A child"out of range"alert system embodying all the functions as described.
4. 4. This system could be incorporated into the parents or guardians mobile phone or local security network.
5. 5. A tamper switch fastener fitted on the transmitting device strap to trigger off the alert if opened illicitly.
6. 6. A pressure switch in base of transmitting device activated by removal of device from the wrist or ankle.