FCC ID: QUI-DDAC-PAD-CAP Bump Cap PAD

 

HIT-NOT Proximity System

BUMP CAP PAD

Model: DDAC-PAD-CAP

User’s Manual v1.0

FREDERICK ENERGY PRODUCTS, LLC

1769 Jeff Road

US7,420,471; US8,169,335; US8,232,888; US5,939,986;

US6,810,353; AU2005289704; ZA2007/02919; ZA2008/02673;

ZA2010/06816, ZA2010/09068 Patent Pending

Huntsville, AL 35806

1.800.489.6915

Table of Contents

1. Overview………………………………………………………………………………………………………….. 2-4

Theory of Operation……………………………………………………………………………… 2

Frequency of Operation………………………………………………………………………… 2

FCC/IC Information………………………………………………………………………………. 3-4

2. Operation…………………………………………………………………………………………………………. 4-6

2.1

Installation Information………………………………………………………………………… 4

2.1.1

Interoperability Warning………………………………………………………………… 5

Charging……………………………………………………………………………………………….. 5

Alerts……………………………………………………………………………………………………. 5

2.4 Maintenance………………………………………………………………………………………… 5

Adjustments…………………………………………………………………………………………. 6

Interferences……………………………………………………………………………………….. 6

PAD Specifications……………………….………………………………………………………. 6

3. Revision History……………………………………………………………………………………………….. 7

1.1

1.2

1.3

2.2

2.3

2.5

2.6

2.7

US7,420,471; US8,169,335; US8,232,888; US5,939,986;

US6,810,353; AU2005289704; ZA2007/02919; ZA2008/02673;

ZA2010/06816, ZA2010/09068 Patent Pending

1

1 Overview

The Bump cap Personal Alarm Device (PAD), model DDAC-PAD-CAP, is part of a complete HIT-

NOT® Proximity Detection System from Frederick Energy Products. This device, worn by

pedestrians, provides warnings to both individuals and to vehicle operators to alert them that

the individual has entered too close to an operating piece of equipment and is in a dangerous

situation. The Personal Alarm Device is worn by the pedestrian to alert them of impending

danger. The Bump Cap PAD is one device that comprises of two parts: (1) a PAD Base Module

which is mounted to the rear of the user’s headwear and (2) a Warning Module permanently

connected to the Base Module by an electrical cable that clips onto the user’s headwear brim.

1.1 Theory of Operation

Functions of the Personal Alarm Device are:

• To sense the 73 kHz field generated around a vehicle or piece of machinery equipped

with a Magnetic Field Generator (MFG).

• To echo a signal back to the Magnetic Field Generator to confirm signal recognition.

• To transmit a 916.48 MHz RF signal to the Magnetic Field Generator.

• Turn on its own alarm when the 73 kHz signal from the Magnetic Field Generator is

confirmed.

When a PAD is in close proximity to the MFG, the PAD will detect the 73 kHz magnetic field

from the generator and analyze its field strength. When the 73 kHz field strength received by

the PAD is above a certain threshold it will indicate that the distance of the Magnetic Field

Generator is close enough to the PAD to signify a Warning or Danger condition. The PAD is

calibrated to differentiate the magnetic field into two zones: Warning and Danger. The PAD

will echo back to the Magnetic Field Generator with a 916.48 MHz transmission to confirm the

signal recognition and then send the alert to the Magnetic Field Generator. The Magnetic Field

Generator has its 916.48 MHz receiver ON when it is transmitting the 73 kHz field and is

“listening” to receive any 916.48 MHz transmissions from a pedestrian with a PAD to indicate

the individual is too close to the vehicle and warrants a warning or danger condition. When an

alert condition has been confirmed between the PAD and Magnetic Field Generator, the PAD

will activate its own alarm. The signal in the Warning Zone will activate an LED light and a

sounder as a continuing series of 3 rapid flashes/beeps followed by an OFF period every three

seconds. If the pedestrian is in the Danger Zone, a continuous alarm and LED will be activated.

1.2 Frequency of Operation

The Personal Alarm Device will receive on a frequency of 73 kHz and transmit on a frequency of

916.48 MHz.

www.hitnot.com

US7,420,471; US8,169,335; US8,232,888; US5,939,986;

US6,810,353; AU2005289704; ZA2007/02919; ZA2008/02673;

ZA2010/06816, ZA2010/09068 Patent Pending

2

1.3 FCC/IC Information

The FCC ID for the Bump cap Personal Alarm Device is QUI-DDAC-PAD-CAP. This device

complies with Part 15 of the FCC Rules. Operation is subject to the following conditions:

1. This device may not cause harmful interference.

2. This device must accept any interference received including interference that may cause

undesired operation.

Any intentional or unintentional changes or modifications to the configuration of the Personal

Alarm Device, not expressly approved by Frederick Energy Products LLC, could void the user’s

authority to operate the equipment.

Note: This equipment has been tested and found to comply with the limits for a Class B digital

device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable

protection against harmful interference in a residential installation. This equipment generates,

uses, and can radiate radio frequency energy and, if not installed and used in accordance with

the instructions, may cause harmful interference to radio communications. However, there is

not guarantee that interference will not occur in a particular installation. If this equipment does

cause harmful interference to radio or television reception, which can be determined by turning

the equipment off and on, the user is encouraged to try to correct the interference by one or

more of the following measures:

--Reorient or relocate the receiving antenna.

--Increase the separation between the equipment and receiver.

--Connect the equipment into an outlet on a circuit different from that to which the receiver is

connected.

--Consult the dealer or an experienced radio/TV technician for help.

Conformité aux normes FCC Cet équipement a été testé trouvé conforme aux limites pour un

dispositif numérique de classe B, conformément à la Partie 15 des règlements de la FCC. Ces

limites sont conçues pour fournir une protection raisonnable contre les interférences nuisibles

dans une installation résidentielle.

Cet équipement génère, utilise et peut émettre des fréquences radio et, s'il n'est pas installé et

utilisé conformément ment aux instructions du fabricant, peut causer des interférences nuisibles

aux communications radio.

Rien ne garantit cependant que l’interférences ne se produira pas dans une installation

particulière. Si cet équipement provoque des interférences nuisibles à la réception radio ou de

télévision, qui peut être déterminé en comparant et en l'éteignant, l'utilisateur est encouragé à

essayer de corriger les interférence par une ou plusieurs des mesures suivantes:

--Réorienter ou déplacer l'antenne de réception.

--Augmenter la distance entre l'équipement et le récepteur.

US7,420,471; US8,169,335; US8,232,888; US5,939,986;

US6,810,353; AU2005289704; ZA2007/02919; ZA2008/02673;

ZA2010/06816, ZA2010/09068 Patent Pending

3

--Branchez l'appareil dans une prise sur un circuit différent de celui auquel le récepteur est

connecté.

--Consulter le vendeur ou un technicien radio / expérimenté.

Les changements ou modififications à cet appareil sans expressément approuvée par la partie

responsable de conformité pourraient annuler l’autorité de l’utilisateur de faire fonctionner cet

équipement.

The required notices are specified in the RSS documents (including RSS-Gen) applicable to the

equipment model. These notices are required to be shown in a conspicuous location in the

user manual for the equipment, or to be displayed on the equipment model. If more than

one notice is required, the equipment model(s) to which each notice pertains should be

identified. Suppliers of radio apparatus shall provide notices and user information in both

English and French.

This device complies with Industry Canada license-exempt RSS-standards(s). Operation is

subject to the following two conditions:

(1) this device may not cause interference, and

(2) this device must accept any interference, including interference that may cause undesired

operation of the device.

Cet appareil est conforme avecx Industrie Canada exempt de licence Rss standard(s). Son

fonctionnement est soumis aux deux conditions suivantes:

(1) cet appareil ne peut causer d’interférence, et

(2) cet appareil doit accepter toute interférence, y compris des interférences qui peuvent

provoquer un fonctionnement indésirable du périphérique.

2 Operation

Installation Information

2.1

The PAD is a two-part device that includes a Warning Module permanently connected to a Base

Module via a flexible electronic cable. Ideally, the PAD Base Module attaches to the back of a

Hard Hat (or Bump Cap) using Velcro and the Warning Module clips to the brim of the Hard Hat

(or Bump Cap) using a built-in metal clip. The flexible electrical cable is routed around the side

of the Hard Hat (or Bump Cap). An alternative mounting is to secure the Base Module in a

pocket inside clothing or a safety vest and attach the Warning Module to clothing or safety vest

near the chest where the user can better hear the audible alert and see the LED light. To

function properly, the Base Module and the Warning Module must be separated by at least

four inches when installed. THE PAD IS POWERED AT ALL TIMES EXCEPT WHEN ITS BATTERY IS

BEING CHARGED.

US7,420,471; US8,169,335; US8,232,888; US5,939,986;

US6,810,353; AU2005289704; ZA2007/02919; ZA2008/02673;

ZA2010/06816, ZA2010/09068 Patent Pending

4

5



2.1.1 Inoperability Warning

When a PAD battery voltage drops to approximately 3.5 Vdc or below while connected to a

PAD, the PAD will signal a low battery condition. This alert is two rapid beeps of the sounder

every 1.6 seconds. When the PAD determines the battery to have low voltage, the PAD will

cease to give zone warnings and will give only a low battery alert. CAUTION: WHEN A LOW

BATTERY IS SIGNALED, THAT PAD SHOULD NOT BE USED UNTIL ITS BATTERY IS RECHARGED.

2.2 Charging

The 3.7V Li-ion PAD battery is charged from a special charging cable provided with each PAD.

The special charging cable has a USB male connector on one end and a special plug on the other

end that magnetically attaches to the PAD. The charging cable provided with each PAD includes

a 100-240 Vac Wall Adapter. The Wall Adapter provides an output current of 0.1 A at a voltage

of 5 Vdc. A LED light on the PAD displays a solid Red light while the battery is charging and

changes to solid Blue when the battery is fully charged. When the charging cable is

disconnected, the sounder on the PAD will activate for approx. 2 seconds to indicate it is in

proper working order.

The PAD should to be charged daily and connected to the charger over weekends and holidays.

2.3 Alerts

The Bump cap PAD is typically worn on a Hard Hat (or Bump Cap) or alternatively near the chest

of the pedestrian. The PAD has an LED visual indicator and an 85-88 dBA (typical) sounder to

alert the user. If the battery voltage in the PAD drops to approximately 3.5 Vdc the PAD will

signal a low battery condition with two rapid beeps every 1.6 seconds. NOTE: THE PAD WILL

CEASE TO GIVE WARNINGS TO THE WEARER WHILE SENDING THE LOW BATTERY ALERT.

2.4 Maintenance

The Lithium Ion Battery in the Personal Alarm Device has a finite life and eventually will need

replacement. Battery life is based on the number of times recharged. There are no published

data about the exact number of charges the battery can undergo before its life is over, but

literature suggests it’s at least 300 charges. Batteries in the PAD are designed to be replaced by

the user. Only use an approved, protected Lithium Ion replacement battery. Contact FEP for

the approved replacement battery list.

A daily check of the LED and sounder is advised to verify the PAD is functioning. Any PAD can

be shown to be working properly by an approaching truck with a generator and verify that a

warning is given at the expected distance.

US7,420,471; US8,169,335; US8,232,888; US5,939,986;

US6,810,353; AU2005289704; ZA2007/02919; ZA2008/02673;

ZA2010/06816, ZA2010/09068 Patent Pending

5

Interferences

2.5 Adjustments

Factory settings of the Personal Alarm Device are expected to be stable and change very little

with time. Adjustment capability of the PAD by the user is not available for field use.

2.6

There are instances when the magnetic field generated from other sources such as an electrical

panel, motorized machinery, large conductor cables etc. can generate intermittent alarm

signals that are picked up by the Personal Alarm Device. The PAD is designed to be fairly

sensitive to pick up the energy from the Magnetic Field Generator though it is also fairly

selective. This sensitivity can cause the PAD to be triggered by some sources that are producing

a strong magnetic frequency (that happen to fall within our guidelines) if the PAD is very close

to the sources usually within a few inches.

If a user stands against a wall near a vehicle path, it is advisable that they do so with the PAD

sticking furthest away from the wall as the wall may have interference sources such as high

current cables or power panels etc. that may silence the PAD.

2.7 PAD Specifications

Part Number: DDAC-PAD-CAP

Size: 3” x 2” x 1.88” / 76mm x 51mm x 48mm (without Sounder/cable)

Weight: 4 oz./ 113g

Input Voltage: 3.5 to 4.2 VDC

Magnetic Field Frequency: none

Receiver Frequency: 73 kHz signal

Transmitter Frequency: 916.48 MHz

Transmitter Power: 0.001W (typical)

PAD Battery: 3.7 VDC Lithium Ion

PAD Battery Capacity: 530 mAh

Charging Specifications: 0.75A at 5V max

Only use Lithium Ion Battery Charger

Operating Temperature Range: -30°C to + 70°C ; -22°F to 158°F

Environmental Considerations: 85 dBa typical at 10 cm

Shipping Considerations: Contains a Lithium Ion Battery (packed in equipment)

US7,420,471; US8,169,335; US8,232,888; US5,939,986;

US6,810,353; AU2005289704; ZA2007/02919; ZA2008/02673;

ZA2010/06816, ZA2010/09068 Patent Pending

6



3 Revision History

3.1 Version 1.0 – June 9, 2021

Original Release. No revision history.

US7,420,471; US8,169,335; US8,232,888; US5,939,986;

US6,810,353; AU2005289704; ZA2007/02919; ZA2008/02673;

ZA2010/06816, ZA2010/09068 Patent Pending

7



 

 

 

 

 

 

 

 

 

 

Exhibit: 7, 29 Bump Cap PAD FCC Label:

Frederick Energy Products, LLC 1769 Jeff Road Huntsville, AL 35806 256-489-6915

 

 

FCC Label Location:

• The FCC Label will be placed on the front of the Bump Cap PAD in the center

Exhibit: 8

Material: Avery 2920

Clear Overlaminate (Gloss – 4 yr film)

Final Thickness 0.006 – 0.010”

Permanent Adhesion

Labels will be pre-cut to size

Frederick Energy Products, LLC

1769 Jeff Road

Huntsville, AL 35806

256-489-6915



 

 

Ml , Frederick Energy Products, LLC 1769 Jeff Road Exhibit: 4

| Hay NENOF Huntsville, AL 35806 Authority to Act as Agent Date: February 22, 2021 American Certification Body, Inc. 6731 Whittier Avenue Suite C110 McLean, VA 22101 To Whom It May Concern:

Washington Laboratories-Steve Koster or designee is authorized to act on our behalf, until otherwise notified, for applications to American Certification Body, Inc. (ACB). We certify that we are not subject to denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Further, no party, as defined in 47 CFR 1.2002 (b). to the application is subject to denial of federal benefits, that includes FCC benefits. We also declare that the information provided to the FCC is true and correct to the best of our knowledge (47 CFR 2.911(d)) and we have been informed of the grantee responsibilities (47 CFR 2.909) with regard to certified equipment. Thank you, Agency Agreement Expiration Date: 2/22/2022

/ C Ca ee D/ aii Eby i By: hep LL GL ME, Harold Dean Estill

(Signature) (Print name) Title: Consultant (FEP Retired) On behalf of: _ Frederick Energy Products

(Company Name) Telephone: (256) 489-6915

 

 

Frederick Energy Products, LLC Exhibit: 13 xX AY 1769 Jeff Road

| Ha if aa OF Huntsville, AL 35806 Request _for Confidentiality Date: June 9, 2021 Subject: Confidentiality Request for: FCC: QUI-DDAC-PAD-CAP and_ IC: 11625A-DDACPADCAP Pursuant to FCC 47 CFR 0.457(d) and 0.459 and IC RSP-100, Section 12.4, the applicant requests that a part of the subject FCC application be held confidential. Type of Confidentiality Requested Exhibit Short Term X] Permanent Block Diagrams LC) Short Term External Photos

[| Short Term [| Permanent *! Internal Photos L] Short Term XX] Permanent Operation Description/Theory of Operation LC] Short Term L] Permanent Parts List & Placement/BOM C1 Short Term CL) Permanent Tune-Up Procedure CL] Short Term X] Permanent Schematics L] Short Term Test Setup Photos Short Term CL] Permanent *? Users Manual Frederick Energy Products has spent substantial effort in developing this product and it is one of the first of its kind in industry. Having the subject information easily available to "competition" would negate the advantage they have achieved by developing this product. Not protecting the details of the design will result in financial hardship. Permanent Confidentiality:

The applicant requests the exhibits listed above as permanently confidential be permanently withheld from public review due to materials that contain trade secrets and proprietary information not customarily released to the public. Short-Term Confidentiality:

The applicant requests the exhibits selected above as short term confidential be withheld from public view for a period of days from the date of the Grant of Equipment Authorization and prior to marketing. This is to avoid premature release of sensitive information prior to marketing or release of the product to the public. Applicant is also aware that they are responsible to notify ACB in the event information regarding the product or the product is made available to the public before the requested period has expired. ACB will then release the documents listed above for public disclosure pursuant to FCC Public Notice DA 04-1705. NOTE for Industry Canada Applications:

IC currently only distinguishes Permanent Confidentiality exhibits as shown above. Short Term confidentiality is not considered applicable to IC applications. Sincerely, wg, Ly : x jl By: [teoG Cetin (FEP Retired) Harold Dean Estill

(Signature/Title) (Print name) The asterisked items (*) require further information to be provided to ACB before permanent confidentiality will be extended to these exhibits. Please refer to FCC KDB 726920 and the specific Document link for DO1 found at:

hitps://apps.fcec.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=4 1731 and review section II, 3) regarding specific information that must accompany these requests.

- Must be signed by applicant contact given for applicant on the FCC site, or by the authorized agent if an appropriate authorized agent letter has been provided. Letters should be placed on appropriate letterhead.