CA2216302A1 - Combat harness - Google Patents

Combat harness Download PDF

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Publication number
CA2216302A1
CA2216302A1 CA 2216302 CA2216302A CA2216302A1 CA 2216302 A1 CA2216302 A1 CA 2216302A1 CA 2216302 CA2216302 CA 2216302 CA 2216302 A CA2216302 A CA 2216302A CA 2216302 A1 CA2216302 A1 CA 2216302A1
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CA
Canada
Prior art keywords
harness
combat
components
ultrasonic
identification code
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.)
Abandoned
Application number
CA 2216302
Other languages
French (fr)
Inventor
Peter Gerber
Karl Staub
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US08/730,682 external-priority patent/US5742251A/en
Application filed by Individual filed Critical Individual
Publication of CA2216302A1 publication Critical patent/CA2216302A1/en
Abandoned legal-status Critical Current

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  • Arrangements For Transmission Of Measured Signals (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

The harness comprises a plurality of elements, such as light detectors, a laser emitter and a master control unit. The elements are communicating by means of ultrasonic or RF-signals. Such signals provide a secure communication over a short distance while being impossible to detect from larger distances. Upon initialization of the harness, the master control unit initializes all elements to respond to a common identification code, which identification code can be updated automatically during later operation.

Description

~5 COMBAT HARNESS

BACKGROUND OF THE INVENTION

FIELD OF THE INVENTION

The invention relates to a sensor harness, a combat simu-lation system and a method for operating a sensor harness.
A harness or a system of this type can e.g. be used for combat simulation and/or"ldentification Friend or Foe" (IFF) systems. It usually comprises a plurality of sensors, such as light sensors, for the detection of laser radiation. Some components of the harness can e.g.
also be mounted on a weapon or be carried in a pocket or on a piece of clothing .
.

CA 022l6302 l997- lO- lO

23.09.97 / hkl -.2.-DESCRIPTION OF RELATED ART

In conventional embodiments, the individual components ofthe harness are communicating over wires. However, wires are cumber-5 some, especially when the harness consists of several parts, e.g. a bodyharness and a helmet harness. For such cases, inductive communication systems have been proposed, which are, however, expensive. They are also prone to be intercepted by enemy radio receivers, thereby giving away a soldier's position.

SUMMARY OF THE INVENTION

Hence it is a general object of the invention to provide a combat harness, a combat simulation system and a method of the types 15 mentioned above that avoid these disadvantages by providing a reliable, safe and simple communication between the individual harness compo-nents.
Now, in order to implement these and still further objects of the invention, which will become more readily apparent as the description 20 proceeds, the harness is manifested by the features that it comprises a plurality of intercommunicating electrical components, wherein at least part of said components comprise an ultrasonic or RF- emitter and a modulator for emitting data communication signals and wherein at least part of said components comprise an ultrasonic or RF- receiver and de-25 modulator for receiving said data communication signals.
The combat simulation system is manifested by the featuresthat it comprises a plurality of combat harnesses, each combat harness comprising a plurality of intercommunicating electrical components, wherein at least part of said components comprise an ultrasonic or RF-30 emitter and a modulator for emitting data communication signals andwherein at least part of said components comprise an ultrasonic or RF- re-ceiver and demodulator for receiving said data communication signals.
The method for operating a combat harness comprising a plurality of intercommunicating electrical components is manifested by the 23.09.97 I hkl -.3.-steps of emitting an ultrasonic or RF- data communication signal from at least a first of said components and receiving said ultrasonic or RF- data communication signal with at least a second of said components.
Ultrasonic or RF- signals, i.e. sound signals with a fre-s quency higher than approximately 20 kHz, are difficult to detect from a distance, i.e. they are not exposed to enemy detection. Also, ultrasonic or RF- emitters and sensors are rugged and simple components, which re-duces the cost of the harness.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will be better understood and objects other than those set forth above will become apparent when consideration is given to the following detailed description thereof. Such description makes reference to the annexed drawings, wherein:

Fig. 1 shows a soldier wearing an embodiment of the har-ness of the present invention, Fig. 2 is a side view of the helmet harness, Fig. 3 is a top view of the helmet harness, Fig. 4 is a side view of the arm harness, Fig. 5 is a top view of the arm harness, Fig. 6 is a front view of the master control unit, Fig. 7 is a side view of the master control unit, Fig. 8 is a block diagram of a slave unit, Fig. 9 is a block diagram of a master control unit, Fig. 10 shows a data packet exchanged between the com-ponents of the harness, and Fig. 11 a complete combat simulation or control system.

CA 022l6302 l997- lO- lO

23.09.97 / hkl -.4.-DESCRIPTION OF THE PREFERRED EMBODIMENTS

The basic design of a preferred embodiment o~ a harness 5 according to the present invention is shown in Fig. 1. Its main componentsare: A master control unit 1, two arm harnesses 2, a helmet harness 3 and a laser assembly 4. Master control unit 1, arm harnesses 2 and helmet harness 3 are each equipped with one or more light detectors 5 sensitive at the wavelength of the light emitted by the laser assembly 4. In the pre-0 sent embodiment, each arm harness 2 is equipped with two detectors ar-ranged on opposite sides of the arm, and helmet harness 3 carries four detectors, each of which covers an area of approximately 90 degrees.
Since each component of the harness can be fastened indi-vidually to the extremities of the body, i.e. arms, legs, head (or helmet), 15 but not around the trunk, i.e. the upper body and chest, putting the har-ness on and taking it off is easy even when a soldier is carrying other equipment, such as a backpack.
The present harness can operate as an IFF system and as a combat simulation system. When being used as an IFF system, one soldier 20 aims his weapon at a potential target and then actuates laser assembly 4, which emits a modulated laser beam. The target (another soldier) detects the laser signal and sends a reply that proofs its identity. This reply is re-ceived by the first soldier's harness or laser assembly, respectively, and indicates that the target is a "friend". In the absence of a suitable reply, 25 the first soldier's harness or laser assembly, respectively, decides that the target must be a "foe".
The present harness can also operate as a combat simula-tion system. In this case, a soldier also aims his weapon at a target (a second soldier wearing a harness) and then actuates laser assembly 4. If 30 the laser beam hits detectors 5 of the second soldier's harness, it displays a "hit".
The laser assembly can also be used independently as an aiming aid as it is known to a person skilled in the art.

23.09.97 I hkl -.5.-The harness of Fig. 1 comprises several components, namely - the master control unit 1 with its detector 5, - the helmet harness (helmet component) comprising four detectors 5 and a helmet control circuit 50a.
- two arm harnesses (arm components), each comprising two detectors 5 and an arm control circuit 50b, - laser assembly 4, which is not worn on the soldier's body but which is also considered to be one of the harness components within n this disclosure because it is carried by the soldier and interacts with the other components, - additional components, such as a GPS module 100, ear phones (not shown), etc.
In the following, we first discuss the mechanical design of some of these components, then the method of communication between them .

Figs. 2 and 3 show helmet harness 3. It comprises a belt 101 with Velcro fastenings 102 at its ends. Four infrared detectors 5 are arranged along belt 101. A wedge 103 behind each detector 5 ensures a vertical position of its outer surface on the curved helmet. Helmet control circuit 50a fastened to the center portion of belt 101 comprises a display 104 and a battery 105.
Figs. 4 and 5 show arm harness 2. It also comprises a belt 110 with Velcro fastening 111. Belt 110 carries two detectors 5 and arm control circuit 50b. Each detector 5 comprises a central light sensitive di-ode 112 and lateral light sensitive diodes 113. Arm control circuit 50b has the same design as helmet control circuit 50a and also contains a display 104 and a battery 105.
Figs. 6 and 7 show a master control unit 1. This master control unit 1 is also equipped with a detector 5. It comprises a key pad 23.09.97 / hkl -.6.-120, a display 104 and a battery 105. A clipping arm 122 can be used for attaching the unit to a breast pocket, belt or other piece of equipment.
The communication between the individual components of the harness is based on ultrasonic or RF- signals. For this purpose, one of s the components, master control unit 1, is acting as a master. The other components are acting as slave units.

Fig. 8 shows the block diagram of a slave unit, namely of the helmet or arm harness. The block diagram of other slave units, such 10 as a GPS module, may contain other or additional elements.
The slave unit is controlled by a control circuitry 129, e.g.
comprising a microprocessor, RAM and ROM, such as it is known to a per-son skilled in the art. Control circuitry 129 monitors the signals from light detectors 5 and displays data on LCD display 104. All elements of the 15 slave unit are powered by battery 105 An ultrasonic or RF- transducer 130 is provided for data communication. Transducer 130 is e.g. a piezoelectric element that can be operated as a emitter as well as a receiver of ultrasonic or RF- waves. In the present embodiment it is working at 40 kHz.
Signals coming from transducer 130 are processed in an amplifier/demodulator 131 and fed to control circuitry 12,9. Signals to be emitted from the slave unit are led through a modulator/driver 132 and sent to transducer 1 30 .
Signals emitted and received can be encoded by any method know to a person skilled in the art, such as by amplitude, fre-quency or pulse modulation.
As it will be explained in detail below, each slave unit also comprises a memory 133 for storing a harness ID, a unique identification code attributed to each harness. Harness IC) memory 133 can be part of the RAM of control circuitry 129.

Fig. 9 shows a block diagram of master control unit 1. It also comprises a control circuitry 129 monitoring detector 5 and driving 23.09.97 / hkl -.7.-LCD display 104, a battery 105, and ultrasonic or RF- transducer 130 with amplifier/demodulator 131 and modulator/driver 132, and a harness ID
memory 133 (which can either be in ROM or RAM). In addition to this, it contains the following elements:
- a radio frequency (R~) sender/receiver 134 for communi-cation with the outside world;
- key pad 120 for inputting data and controlling the opera-tion of the harness;
- a removal detector 135 for detecting if master control unit 10 1 was removed from its wearer; this detector can e.g. be provided with sensors measuring humidity, temperature, pulse, vocal emissions or other parameters indicative of the proximity of its wearer's body, or it can con-tain mechanical detectors indicating an opening of the master control unit's fastenings or clip, etc.
Data communication between the individual components of the harness can e.g. be implemented by using data packets such as the one shown in Fig. 10. Each data packet starts with a header 140, followed by a data block 141 and a suitable checksum 142.
For normal communication, standard messages with a 20 header 140 containing the harness ID of the present harness are emitted.
Upon receipt of the message, each component compares this jD to the one stored in harness ID memory 133. If the two identification codes match, the following data block 141 is analyzed. Datablock 141 e.g. contains in-formation about the state of the detector(s), commands to be displayed on LCD display 104, etc.
Such standard messages can be emitted by each of the components of the harness. They are received and analyzed by all other components .
In addition to this, master control unit 1 can also emit ad-ministrative messages. One such administrative message is the initializa-tion message.
An initialization message is usually emitted once after a user has put on the harness, entered a harness identification code to be CA 022l6302 l997- lO- lO

23.09.97 J hkl -.8.-stored in harness ID memory 133, and pressed an "initialization" key on key pad 120. The initialization message contains a special initialization code in header 140. When a slave component receives a message with this initialization code, it parses data block 141, which contains the har-ness ID of the master control unit. This harness ID is copied to the har-ness ID of the receiving slave unit. Hence, the initialization message is used for setting the harness ID of all slave units located within the range of transducer 130 of the master control unit. After having put on his har-ness, a soldier therefore is to go to a place sufficiently far from any other 10 soldier wearing a harness and press the initialization key on his master control unit 1. This initializes all components of his harness.
A second administrative message emitted from the master control unit is the synchronization message. Synchronization messages are emitted in regular time intervals. Each synchronization message con-15 tains a special synchronization code in its header 140 and the harness ID
of the master control unit in its data block 141. Each slave unit controls if it receives at least one synchronization message containing its harness ID
within a given time interval. If not, it assumes that it has been removed from its master control unit. It then starts scanning for any synchronization 20 message and, once it receives one, will extract the harness ID from data block 141 and set its harness ID memory to this new harness ID. This makes it possible to exchange harness components. When a harness component is moved from one soldier to the other, it will automatically synchronize its identification code with the harness components around it.
Normal standard messages are used for exchanging data between the components of the harness. They e.g. transport the following information:
- laser signals received on one of the detectors 5;
- the battery state of the individual components;
- information to be displayed on the LCD display 104 of each component- in a preferred embodiment, each display 104 of each component shows the same information;
- position information from GPS unit 100;

CA 022l6302 l997- lO- lO

23.09.97 / hkl -.9.-- IFF or simulation status information from laser assembly 4.
Other types of information can be exchanged as well.

In the present embodiment shown in Fig. 1, the master 5 control unit 1 is the master, while all other components are slave units. It is, however, possible to design any one of the other components to be the master control unit. Also, the number of components can vary and be larger or smaller than shown here.
Fig. 11 shows a complete combat or simulation system used 10 for monitoring or controlling a plurality of soldiers 150 from a combat con-trol 151.
Combat control 151 is equipped with a radio receiver/sender 152, which provides data communication to the radio receiver/sender 134 of the master control units 1 of the soldiers' harnesses. This link is used 15 by the master control units for transmitting status information on each sol-dier (such as his position, help signals, detected hits, etc.). Combat con-trol 151 can use this link for transmitting commands, such as "retreat" or "attack" .
In addition to this, there can be a plurality of stationary or 20 movable (e.g. vehicle based) receivers/senders 152, which are linked to combat control 151 via cable or radio. Each such receiver/sender 152 comprises one or more ultrasonic or RF- transducers 153, which can be used for communication with the transducers 130 of the harnesses. Re-ceivers/senders 152 can e.g. detect the presence of soldiers in a given 25 area (for example in a room), thereby providing further information for combat control 151. They can also be used for transmitting data from combat control 151 to all soldiers in the given area.
Receivers/senders 152 can also be coupled to automatic door openers, room illumination, video monitoring, etc. For such tasks, 30 they need not necessarily be connected to combat control 151.
The present invention can also be combined with any exist-ing combat simulation and communication systems.

-23.09.97 / hkl -.10.-While there is shown and described a presently preferredembodiment of the invention, it is to be distinctly understood that the in-vention is not limited thereto but may be otherwise variously embodied and practiced within the scope of the following claims.

Claims (18)

1. A combat harness comprising a plurality of intercommunicating electrical components, wherein at least part of said components comprise an ultrasonic or RF emitter and a modulator for emitting data communication signals and wherein at least part of said components comprise an ultrasonic or RF-receiver and demodulator for receiving said data communication signals.
2. The combat harness of claim 1 comprising a plurality of harness elements for being individually fastened to the human body and for carrying at least one of said components.
3. The combat harness of claim 2 further comprising at least one arm harness, said arm harness comprising a belt and fastening means for fastening said belt around a human arm.
4. The combat harness of claim 1, wherein each of said components comprises one of said ultrasonic or RF-emitters and one of said ultrasonic or RF-receivers.
5. The sensor harness of claim 1, wherein one of said components is a master control unit and the remaining components are slave units, wherein said master control unit comprises a master memory for storing a harness identification code and master control circuitry for -.12.-transmitting said identification code to said slave units by means of said data communication signals.
6. The combat harness of claim 5, wherein each of said slave units comprises a slave memory for storing said identification code from said master control unit and slave control circuitry for comparing incoming messages to said identification code stored in said slave memory.
7. The combat harness of claim 1, wherein a plurality of said components comprises a display.
8. The combat harness of claim 7, wherein at least part of data displayed on said displays is displayed on more than one of said displays simultaneously.
9. The combat harness of claim 1, wherein at least one of said components comprises a means for detecting a removal of at least part of said harness from the human body.
10. The combat harness of claim 1 comprising a plurality of straps for fastening said components to a wearer, wherein said straps are designed for being fastened around the extremities but not around the trunk of the wearer.
11. A combat simulation system comprising a plurality of combat harnesses, each combat harness comprising a plurality of -.13.-inter-communicating electrical components, wherein at least part of said components comprise an ultrasonic or RF-emitter and a modulator for emitting data communication signals and wherein at least part of said components comprise an ultrasonic or RF-receiver and demodulator for receiving said data communication signals.
12. The combat simulation system of claim 11 further comprising stationary ultrasonic or RF-receivers for communicating with said combat harnesses.
13. The combat simulation system of claim 11 further comprising stationary ultrasonic or RF-transmitters for communicating with said combat harnesses.
14. A method for operating a combat harness comprising a plurality of intercommunicating electrical components, said method comprising the steps of emitting an ultrasonic or RF-data communication signal from at least a first of said components and receiving said ultrasonic or RF-data communication signal with at least a second of said components.
15. The method of claim 14 further comprising a step of attributing a common harness identification code to said components.
16. The method of claim 15, wherein one of said elements is a master control unit and the other elements are slave units and wherein in said step of attributing a common harness identification code said -.14.-identification code is transmitted from said master control unit to said slave units.
17. The method of claim 16, wherein said common identification code is repeatedly transmitted from said master control unit to said slave units.
18. The method of claim 17, wherein when a slave unit does not receive said common identification code from said master control unit within a given time interval, said slave unit stores a next received identification code as said common identification code.
CA 2216302 1996-10-11 1997-10-10 Combat harness Abandoned CA2216302A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US08/730,682 US5742251A (en) 1996-10-11 1996-10-11 Combat harness
US08/730,682 1996-10-11
EP97202141A EP0836069B1 (en) 1996-10-11 1997-07-11 Belt system for struggle aim
EP97202141.4 1997-07-11

Publications (1)

Publication Number Publication Date
CA2216302A1 true CA2216302A1 (en) 1998-04-11

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ID=26146683

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2216302 Abandoned CA2216302A1 (en) 1996-10-11 1997-10-10 Combat harness

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JP (1) JPH10122796A (en)
AU (1) AU723631B2 (en)
CA (1) CA2216302A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2060069B1 (en) * 2006-09-09 2016-02-17 Rheinmetall Defence Electronics GmbH Communication method between components in a wireless short haul network, and network component

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007005939A1 (en) * 2007-02-01 2008-08-07 Oerlikon Contraves Ag Portable multi-purpose weapon
JP2016125803A (en) * 2015-01-08 2016-07-11 富士通株式会社 Gun shot training system, communication apparatus, optical receiver and gun shot training method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4003960A1 (en) * 1989-02-09 1990-08-16 Autoflug Gmbh Laser detection system for armed forces - is provided as body harness and helmet with detectors
FR2659136B1 (en) * 1990-03-02 1993-12-31 Allis SHOOTING SYSTEM THAT CAN BE USED AS WELL AS PRECISION SHOOTING TRAINING AS WITH BATTLE SIMULATION.
US5479408A (en) * 1994-02-22 1995-12-26 Will; Craig A. Wireless personal paging, communications, and locating system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2060069B1 (en) * 2006-09-09 2016-02-17 Rheinmetall Defence Electronics GmbH Communication method between components in a wireless short haul network, and network component

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Publication number Publication date
AU723631B2 (en) 2000-08-31
JPH10122796A (en) 1998-05-15
AU3929197A (en) 1998-04-23

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