DK201870569A1 - Wireless Trailer Indication System - Google Patents

Wireless Trailer Indication System Download PDF

Info

Publication number
DK201870569A1
DK201870569A1 DKPA201870569A DKPA201870569A DK201870569A1 DK 201870569 A1 DK201870569 A1 DK 201870569A1 DK PA201870569 A DKPA201870569 A DK PA201870569A DK PA201870569 A DKPA201870569 A DK PA201870569A DK 201870569 A1 DK201870569 A1 DK 201870569A1
Authority
DK
Denmark
Prior art keywords
radio
signals
power
light
vehicle
Prior art date
Application number
DKPA201870569A
Other languages
Danish (da)
Inventor
Nielsen Kurt
Original Assignee
Gear2Cars ApS
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
Application filed by Gear2Cars ApS filed Critical Gear2Cars ApS
Priority to DKPA201870569A priority Critical patent/DK201870569A1/en
Priority to PCT/DK2019/050261 priority patent/WO2020048574A1/en
Publication of DK201870569A1 publication Critical patent/DK201870569A1/en
Priority to DKBA202100049U priority patent/DK202100049Y3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/30—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating rear of vehicle, e.g. by means of reflecting surfaces
    • B60Q1/305—Indicating devices for towed vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/2607—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic comprising at least two indicating lamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/04—Arrangements for detecting or preventing errors in the information received by diversity reception using frequency diversity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2900/00—Features of lamps not covered by other groups in B60Q
    • B60Q2900/30—Lamps commanded by wireless transmissions

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

A wireless rear light system, for example a lighting board, for a trailer is operated by radio communication, where commend signals are sent at dual frequencies in order to provide additional safety through redundancy.

Description

Wireless Trailer Indication System
FIELD OF THE INVENTION
The present invention relates to improvements in or relating to lighting boards for trailers, towed automobiles or load carriers, such as bicycle carriers, mounted to the rear of a vehicle, in which the signals between the vehicle and the lighting board are transmitted by radio waves.
BACKGROUND OF THE INVENTION
It is a requirement to fit a lighting board when the rear light units of a vehicle are obstructed, for example when towing a trailer or other vehicle or when obstructed by a load mounted on the rear of the vehicle. Prior art lighting boards include multifunctional light units on either side of the board, typically with an additional number plate in between. The lighting board is mounted visible to the driver of a following car and a wiring connection or a wireless connection is provided between the lighting board and the vehicle so that operation of the light units of the lighting board is synchronised with operation of the rear lights of the vehicle in order to indicate a warning of any intended turn or of braking to the driver of a following car.
Wireless lighting board systems are operated by a radio transmission from a transceiver that is electrically connected to the electrical trailer plug system at the rear of the vehicle. Examples are disclosed in GB2375901 and US6100801 for trailers and in US5666103 for towed automobiles. Although, the wireless communication between the vehicle transmitter and the receiver in the lighting board is a practical and useful approach avoiding cabling between the vehicle and the trailer, it implies a risk that the radio frequency is disturbed and the properly functioning of the lighting board is not any longer guaranteed.
It would be desirable to provide a wireless rear light indication system with safer functioning.
DK 2018 70569 A1
DESCRIPTION / SUMMARY OF THE INVENTION
It is therefore an objective of the invention to provide an improvement in the art. In particular, it is an objective to provide a more reliability functioning of a wireless rear light system, especially for a trailer, a towed automobile or a load carrier on the back of the vehicle. This objective is achieved with a wireless rear light system, for example a lighting board, and its method of operation by radio communication, where commend signals are sent at two different radio frequencies in order to provide additional safety through redundancy. The system is explained in more detail in the following.
The wireless rear light system comprises
- a radio transmitter unit configured for electrical connection to the electrical system of a vehicle; the radio transmitter unit being configured for receiving wired electrical power signals from the vehicle through the electrical connection, each of the power signals relating to either rear light, stop light or turning indicator light; wherein the radio transmitter unit is configured for providing and transmitting different specific wireless command signals relating to either rear light, stop light or turning indicator light in dependence on the wired electrical power signals received from the electrical system of the vehicle;
- a light indicator system separate from the radio transmitter and comprising lamps for rear light, stop-light and turning light and configured for removable mounting on a trailer or towed automobile, for example a lighting board with a set of such lamps at either end of the lighting board; typically, this lighting system is mounted on a trailer, a towed automobile or a load carrying structure on the back of a vehicle;
- a radio receiver unit comprising a radio receiver configured for receiving the command signals and a controller electronically connected to the radio receiver and configured for connecting electrical power selectively to the lamps of the light indicator system in dependence of the received command signals;
- a power source, for example a power-rechargeable battery or a hydrogenrechargeable fuel cell system, for providing electrical power to the radio receiver, the controller, and the lamps.
DK 2018 70569 A1
In particular, the radio transmitter unit is configured for sending and the radio receiver for receiving the specific wireless command signals at two different radio frequencies for each wired electrical power signal received from the vehicle through the multi-pin Plug.
The term frequency of the command signal refers to the carrier frequency of the command signals. The specific signal itself would result as a modulation of the carrier frequency.
For example, the dual frequency system is made with a transceiver and antenna for each frequency.
It has been found useful for providing higher safety for proper functioning and less risk for disturbance when using dual command signals sent in parallel from the radio transmitter at different frequencies. For example, the dual signals for the activation of the lamps are sent by the transmitter at a first frequency, for example in the range of 800-900 MHz, optionally at 869.70 MHz, and also at a second frequency, for example in the range of 400-500 MHz, optionally at 434.05 MHz. If the lower of the two frequencies is far from the higher frequency, for example more than 10% different than the higher frequency, such as at least 20, 30, 40 or 50 % different than the higher frequency, the risk for disturbance of both radio signals at the same time is reduced as compared to a signal at a single frequency. Accordingly, the system provides redundancy with increased safety in a simple way and ensures reliable communication.
For example, the dual command signals with different radio frequencies are sent simultaneously or approximately at the same time, for example with less than 0.1 seconds between the two signals. The two signals have to be sent before the next wired power signal is received by the transmitter unit from the vehicle through the multi-pin plug.
Advantageously, the signals are digital. An optional data rate for the radio signals is in the range of 10-100 kb/s, for example 40 kb/sec.
Although, the prior art, for example GB2375901, discloses different frequencies, such as frequency hopping, for the signals, there is no disclosure of sending dual signals at
DK 2018 70569 A1 two different radio frequencies for each electrical power signal received from the vehicle through the multi-pin plug. In the prior art, one frequency is used for one electrical power signal at one time instance, and another frequency is used for another electrical power signal at a second time instance. In contrast thereto, in the invention, each electrical signal causes two radio signals being transmitted, where the dual signals have different frequencies.
In possible embodiments, the radio signals have a digital sequence of a destination address and a source address as well as a command sequence. When paired, the destination address and the source address in the radio signals prevents reading of the radio signals by a receiver that is not addressed and prevents the receiver from reading signals from a transmitter of a neighbouring vehicle. Received data packages in the radio signals with addresses that are not matching are disregarded and no commands executed by the controller. Only the specifically addressed receiver would evaluate the signal and cause the lighting in accordance with the intention of the user in the vehicle and synchronous with the vehicle’s rear lighting system. The digital sequence optionally also contains information about the system and the software version for the system. The controllers are typically provided with computers for controlling the lamps and determining the check of the power of the power source. Optionally for higher safety, the digital signals are encrypted.
For example, the radio transmitter unit comprises a multi-pin plug for electrical connection to a corresponding trailer-standard multi-pin connector socket on a vehicle. In this embodiment, the radio transmitter unit is configured for receiving wired electrical power signals from the vehicle through the multi-pin plug, each of the power signals relating to either rear light, stop light or turning indicator light. Further, the radio transmitter unit is configured for providing and transmitting different specific wireless command signals relating to either rear light, stop light or turning indicator light in dependence on the wired electrical power signals received through the plug.
In some embodiments, where the radio transmitter unit comprises a multi-pin plug and is connected to a corresponding trailer-standard multi-pin connector socket on a vehicle, a feedback signal in the vehicle for proper functioning of the trailer lamps requires a certain power consumption by the lamps. For example the proper functioning of the
DK 2018 70569 A1 turning signal is indicated only when a certain level of power consumption is measured. In other cases, a lack of power consumption triggers an alarm of an apparently defect lamp. For this case, the radio transmitter unit has a corresponding power consumption circuit integrated, including resistors, that mimics consumption of a standard lamp of a trailer. Such consumption circuit, including selected resistors, is also useful in case that the vehicle is equipped with an electrical system that comprises a CAN bus system (CAN=Controller Area Network).
In some practical embodiments, the transmitter unit receives an electrical power signal from the vehicle through the multi-pin plug and creates and sends command signals at two different radio frequencies to the radio receiver for causing operation of a corresponding lamp of the light indicator system.
Optionally, electrical power is connected to the corresponding lamp by the radio receiver system as a consequence of receiving at least one of the two command signals. As only one of the dual command signals are necessary for the operation, a disturbance or loss of the signals at one frequency is acceptable.
In special embodiments, the system comprises
- a second radio transmitter unit comprising a second radio transmitter and a second controller, wherein the second controller is functionally connected to the power source and configured for periodically monitoring the charging state of the power source and for periodically creating corresponding charging state indicative signals; wherein the second radio transmitter is electronically connected to the second controller and configured for transmitting periodic power status signals, for example the voltage, indicative of the power status of the power source, for example the battery;
- a status indicator unit comprising a second radio receiver configured for receiving the wireless power status signals, wherein the status indicator unit comprises an indicator for visually and/or or by audio signals indicating the power status of the power source to a user on the basis of the received power status signals.
In practice, the method comprises arranging the status indicator unit inside a vehicle and visible to the driver and indicating the power status of the power source during operation of the light indicator system on the trailer. The status indicator is typically
DK 2018 70569 A1 powered by a battery, potentially rechargeable through a power cable, for example with a USB charging plug.
Optionally, the status indicator has a number of light emitting diodes (LED), indicating the power status by colour and/or number of illuminated LEDs.
Optionally, the power status signals are sent at both frequencies. Alternatively, the power status signals are sent on only one frequency, for example one of the radio frequencies used for radio signals from the transmitter on the vehicle.
In some embodiment, the status indicator indicates if command signals at one of the frequencies are not working properly for the communication. For this, it receives a corresponding alarm signal from the second transmitter unit.
Typically, the second radio transmitter unit and the radio receiver are combined into a transceiver and part of a single unit, not only comprising the controller but also the second controller. Optionally, the controller and the second controller are optionally combined into a multi-controller that is controlling not only the electrical power to the lamps but also the power status of the power source, for example the voltage of the rechargeable battery.
A rechargeable battery with a power capacity of more than 5000 mAh, for example 8000 mAh, have been found useful for such light indicator systems if LEDs are used.
Optionally, the second radio transmitter transmits failsafe radio signals periodically to the status indicator unit, for example once after each time period in the range of 1 to 10 seconds, optionally in the range of 1 to 4 seconds. This gives the system an additional degree of safety control. For example, the failsafe radio signals are only sent as a response after receiving a command signal from the vehicles radio transmitter unit.
In further embodiments, the status indicator unit is configured for creating an audio and/or visual alarm signal when there is a lack of power status signals or other type of radio signals, such as failsafe radio signals, from the second radio transmitter unit within a predetermined time slot. This is an indication that radio connection is lost to
DK 2018 70569 A1 the second radio transmitter unit. For example, the status indicator provides a flashing light signal and potentially a characteristic alarm tone at the same time for causing attention.
In practice, the method comprises checking, by the status indicator, whether power status signals or other type of radio signals, such as failsafe radio signals, are received from the second radio transmitter within a predetermined time slot, and if no such signals are received, creating an alarm, typically a visual and/or audio signal, as an indication that radio connection is lost to the second radio transmitter unit.
Such time slot is typically shorter than a minute and longer than a second.
For example, the light indicator system and the radio receiver unit are provided as an integrated unit, such as in a lighting board. Optionally, also the power source is integrated therein, typically in the form of a rechargeable battery.
Optionally, light indicator system, for example the lighting board, comprises a magnet and is mountable to the trailer or towed car by magnetic attachment.
In order to save power consumption by the radio system and the lamps when the trailer is not in use, the system potentially includes a motion sensor which activates the system and keeps it activated, when motion is detected and/or when electrical signals are received.
Optionally, the radio system is configured for going into a sleeping mode, if no electrical wired signal is received from the electrical system for a while and no motion is detected within a predetermined time lapse.
SHORT DESCRIPTION OF THE DRAWINGS
The invention will be explained in more detail with reference to the drawing, where FIG. 1 is an overview drawing of the system on a vehicle with a trailer;
FIG. 2 illustrates a radio transmitter unit;
FIG. 3 illustrates an embodiment of a lighting board;
DK 2018 70569 A1
FIG. 4 illustrates an alternative lighting system with two separate lamp armatures.
DETAILED DESCRIPTION / PREFERRED EMBODIMENT
FIG. 1 illustrates a vehicle 1, such as a lorry, to which a trailer 2 is connected. Alternatively, the trailer 2 can be exchanged with a towed automobile. The trailer 2 comprises a light indicator system 3 with lamps for rear light, stop-light and turning light, for example a lighting board with a set of such lamps at either end of the lighting board. The light indicator system 3 also contains a rechargeable battery and a radio receiver unit that is connecting electrical power selectively to the lamps of the light indicator system in dependence of received command signals. The vehicle 1 is equipped with a radio transmitter unit 4 that wirelessly transmits command signals to the radio receiver unit of the light indicator system 3.
FIG. 2 illustrates a radio transmitter unit 6, which comprises a multi-pinned plug 8 for electrical connection to a corresponding trailer-standard multi-pin connector socket on the vehicle 1. The transmitter unit 6 receives wired electrical power signals from the vehicle through the multi-pin plug 8, each of the wired power signals relating to either rear light, stop light or turning indicator light. The radio transmitter unit is configured for transforming the wired signals into wireless signals and thus providing and transmitting different specific wireless command signals 7a, 7b relating to either rear light, stop light or turning indicator light in dependence on the power signals received through the plug 8. The specific wireless command signals 7a, 7b are sent at two different radio frequencies, typically sent simultaneously, for each electrical power signal received from the vehicle 1 through the multi-pin plug 8.
FIG. 3 illustrates the light indicator system 3 in the form of a lighting board 3’ with a set of such lamps 11, 12, 13 at either end of the lighting board with lamps for rear light 11, stop-light 12 and turning light 13. One set of lamps 11, 12, 13 is provided on either end and on opposite sides of a number plate 10. Optionally, the lighting board 3’ is mountable to the trailer 2 or towed car by magnetic attachment.
The lighting board 3’contains a rechargeable battery 14 that powers a radio receiver unit 15 for receiving the command signals with both frequencies from the transmitter
DK 2018 70569 A1 unit 6. It is configured for connecting electrical power from the battery 14 selectively to the lamps 11, 12, 13 of the light indicator system 3 in dependence of the received command signals.
The lighting board 3’ also contains a second radio transmitter unit 16 functionally connected to the battery 14 and configured for periodically monitoring the charging state of the battery 14. It created periodically corresponding power status signals for example indicative for the battery voltage, which are transmitted periodically as radio signals to a status indicator unit 5 inside the vehicle, see, FIG. 1.
The status indicator 5 comprises a second radio receiver configured for receiving the power status signals, and the status indicator unit comprises an indicator for visually indicating the power status of the power source to a user on the basis of the received power status signals.
Optionally, the status indicator unit 5 is configured for creating an audio and/or visual alarm signal when no power status signals or when no failsafe radio signals are received from the second radio transmitter unit 16 within a predetermined time slot. The alarm is an indication that radio connection is lost to the second radio transmitter unit. Such failsafe signals are periodically sent from the second transmitter unit 16 in order to ensure proper communication. For example, the failsafe radio signals are only sent as a response after receiving a command signal from the radio transmitter unit 6 at the vehicle 2.
Optionally, the second radio transmitter unit 16 and the radio receiver unit 15 are combined into a single complex unit 15’.
FIG. 4 illustrates an alternative lighting system with two separate lamp armatures instead of a light board. Optionally, each of the separate lamp armatures are provided with rear light, stop light, and turning indicator, and with a power source, second radio transmitter unit, and radio receiver unit. Optionally, in order to separate between right and left indicators, the two lamp armatures comprise different radio addresses. In this case, a malfunctioning of one of the lamps, for example rear lamps, is easily identified by the system.

Claims (13)

1. A method for wireless operation of a rear light system, the system comprising
- a radio transmitter unit for electrical connection to the electrical system of a vehicle; the radio transmitter unit being configured for receiving wired electrical power signals from the electrical system of the vehicle, each of the power signals relating to either rear light, stop light or turning indicator light; wherein the radio transmitter unit is configured for providing and transmitting different specific wireless command signals relating to either rear light, stop light or turning indicator light in dependence on the wired electrical power signals received from the electrical system of the vehicle;
- a light indicator system separate from the radio transmitter and comprising lamps for rear light, stop-light and turning light and configured for removable mounting on a trailer or towed automobile, for example a lighting board with a set of such lamps at either end of the lighting board; typically, this lighting system is mounted on a trailer, a towed automobile or a load carrying structure on the back of a vehicle;
- a radio receiver unit comprising a radio receiver configured for receiving the command signals and a controller electronically connected to the radio receiver and configured for connecting electrical power selectively to the lamps of the light indicator system in dependence of the received command signals;
- a power source, for example a power-rechargeable battery or a hydrogenrechargeable fuel cell system, for providing electrical power to the radio receiver, the controller and the lamps;
characterized in that the radio transmitter unit is configured for sending and the radio receiver for receiving the specific wireless command signals at two different radio frequencies for each wired electrical power signal received from the electrical system of the vehicle for redundancy and reduced risk to miss signals due to radio signal disturbance, wherein the method comprises
- by the transmitter unit receiving an electrical power signal from the electrical system of the vehicle and creating and sending wireless command signals at two different radio frequencies to the radio receiver for causing operation of a corresponding lamp of the light indicator system.
DK 2018 70569 A1
- by the radio receiver system receiver system connecting electrical power to the corresponding lamp as a consequence of receiving at least one of the two command signals.
2. A method according to claim 1, wherein the radio transmitter unit comprises a multi-pin plug for electrical connection to a corresponding trailer-standard multi-pin connector socket on a vehicle; the method comprising electrically connecting the multipin plug to a corresponding trailer-standard multi-pin connector socket on the vehicle and receiving the wired electrical power signals by the radio transmitter unit from the connector socket through the multi-pin plug.
3. A method according to claim 2, wherein the radio transmitter unit is powered by the car through the connector socket and the multi pin-plug.
4. A method according to any preceding claim, the system comprising
- a second radio transmitter unit comprising a second transmitter and a second controller, wherein the second controller is functionally connected to the power source and configured for periodically monitoring the charging state of the power source and for periodically creating corresponding charging state indicative signals; wherein the a second radio transmitter is electronically connected to the second controller and configured for transmitting periodic power status signals that are indicative of the power status of the power source, for example the battery voltage;
- a status indicator unit comprising a second radio receiver configured for receiving the power status signals, wherein the status indicator unit comprises an indicator for visually indicating the power status of the power source to a user on the basis of the received power status signals;
wherein the method comprises arranging the status indicator unit inside a vehicle visible to the driver and indicating the power status of the power source during operation of the light indicator system.
5. A method according to claim 4, wherein the status indicator unit is configured for creating an audio and/or visual alarm signal when no power status signals or other type of radio signals are received from the second radio transmitter unit within a predetermined time slot as an indication that radio connection is lost to the second radio
DK 2018 70569 A1 transmitter unit; wherein the method comprises by the status indicator checking whether power status signals or other type of radio signals, such as failsafe radio signals, are received from the second radio transmitter within a predetermined time slot, and if no such signals are received creating a visual and/or audio signal as an indication that radio connection is lost to the second radio transmitter unit.
6. A wireless rear light system, the system comprising
- a radio transmitter unit for electrical connection to the electrical system of a vehicle; the radio transmitter unit being configured for receiving wired electrical power signals from the electrical system of the vehicle , each of the power signals relating to either rear light, stop light or turning indicator light; wherein the radio transmitter unit is configured for providing and transmitting different specific wireless command signals relating to either rear light, stop light or turning indicator light in dependence on the wired electrical power signals received from the electrical system of the vehicle;
- a light indicator system separate from the radio transmitter and comprising lamps for rear light, stop-light and turning light and configured for removable mounting on a trailer or towed automobile, for example a lighting board with a set of such lamps at either end of the lighting board; typically, this lighting system is mounted on a trailer, a towed automobile or a load carrying structure on the back of a vehicle;
- a radio receiver unit comprising a radio receiver configured for receiving the command signals and a controller electronically connected to the radio receiver and configured for connecting electrical power selectively to the lamps of the light indicator system in dependence of the received command signals;
- a power source, for example a rechargeable battery, for providing electrical power to the radio receiver, the controller and the lamps;
characterized in that the radio transmitter unit is configured for sending and the radio receiver for receiving the specific command signals at two different radio frequencies for each electrical power signal received from the electrical system of the vehicle for redundancy and reduced risk to miss signals due to radio signal disturbance.
7. A system according to claim 6, wherein the radio transmitter unit comprises a multi-pin plug for electrical connection to a corresponding trailer-standard multi-pin connector socket on a vehicle; the radio transmitter unit being configured for receiving wired electrical power signals from the vehicle through the multi-pin plug; wherein
DK 2018 70569 A1 the radio transmitter unit is configured for providing and transmitting the different specific wireless command signals in dependence on the wired electrical power signals received from the vehicle through the plug; typically, the radio transmitter unit being powered by the car through the connector socket.
8. A system according to claim 6 or 7, the system comprising
- a second radio transmitter unit comprising a second transmitter and a second controller, wherein the second controller is functionally connected to the power source and configured for periodically monitoring the charging state of the power source and for periodically creating corresponding charging state indicative signals; wherein the a second radio transmitter is electronically connected to the second controller and configured for transmitting periodic power status signals that are indicative of the power status of the power source, for example the battery voltage;
- a status indicator unit comprising a second radio receiver configured for receiving the power status signals, wherein the status indicator unit comprises an indicator for visually indicating the power status of the power source to a user on the basis of the received power status signals.
9. A system according to claim 8, wherein the status indicator unit is configured for creating an audio and/or visual alarm signal when no power status signals or other type of radio signals, such as failsafe radio signals, are received from the second radio transmitter unit within a predetermined time slot as an indication that radio connection is lost to the second radio transmitter unit.
10. A system according to any one of the claims 6-9, wherein the system comprises a lighting board in which the light indicator system, the radio receiver unit, and the power source in the form of a rechargeable battery are integrated.
11. A system according to any one of the claims 6-10, wherein the lower of the two different radio frequencies differ by more than 10% relatively to the higher frequency.
12. A system according to claim 11, wherein the two different frequencies are in the ranges of 800-900 MHz and 400-500 MHz, respectively.
DK 2018 70569 A1
13. A system according to any one of the claims 6-12, wherein the system comprises a motion sensor for measuring motion of the vehicle and/or the trailer and is configured for switching into a power saving mode after a predetermined time lapse in which no motion is detected by the motion sensor and no electrical signal is received from the 5 electrical system of the vehicle.
DKPA201870569A 2018-09-04 2018-09-04 Wireless Trailer Indication System DK201870569A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DKPA201870569A DK201870569A1 (en) 2018-09-04 2018-09-04 Wireless Trailer Indication System
PCT/DK2019/050261 WO2020048574A1 (en) 2018-09-04 2019-09-03 Wireless trailer indication system
DKBA202100049U DK202100049Y3 (en) 2018-09-04 2021-06-04 WIRELESS TRAILER IDENTIFICATION SYSTEM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DKPA201870569A DK201870569A1 (en) 2018-09-04 2018-09-04 Wireless Trailer Indication System

Publications (1)

Publication Number Publication Date
DK201870569A1 true DK201870569A1 (en) 2020-03-27

Family

ID=69721972

Family Applications (2)

Application Number Title Priority Date Filing Date
DKPA201870569A DK201870569A1 (en) 2018-09-04 2018-09-04 Wireless Trailer Indication System
DKBA202100049U DK202100049Y3 (en) 2018-09-04 2021-06-04 WIRELESS TRAILER IDENTIFICATION SYSTEM

Family Applications After (1)

Application Number Title Priority Date Filing Date
DKBA202100049U DK202100049Y3 (en) 2018-09-04 2021-06-04 WIRELESS TRAILER IDENTIFICATION SYSTEM

Country Status (2)

Country Link
DK (2) DK201870569A1 (en)
WO (1) WO2020048574A1 (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4859982A (en) * 1988-01-07 1989-08-22 Seaburg Stephen L Wireless taillight system
DE19757235C2 (en) * 1997-12-22 2000-01-05 Honeywell Ag Control system for a building or for one or more rooms in a building
US6265988B1 (en) * 1998-04-06 2001-07-24 Trw Inc. Apparatus and method for remote convenience message transmission and control utilizing frequency diversity
US6100801A (en) * 1998-05-21 2000-08-08 Custer Products Incorporated Radio controlled light bar
FR2831001B1 (en) * 2001-10-15 2004-01-02 Delta Dore HIGH RELIABILITY AND LOW NON-ESSENTIAL ELECTROMAGNETIC RADIATION TELECOMMUNICATION SYSTEM
WO2004001549A2 (en) * 2002-06-24 2003-12-31 Collins John W Vehicle legal compliance system
GB2411458A (en) * 2004-02-24 2005-08-31 Wayne Joseph Cooper A light board for a towed vehicle
US8061879B2 (en) * 2007-11-11 2011-11-22 Isaiah Monty Simmons Smart lights
US20150266450A1 (en) * 2014-03-18 2015-09-24 Tim Gilson Automated Alert Light System

Also Published As

Publication number Publication date
WO2020048574A1 (en) 2020-03-12
DK202100049Y3 (en) 2021-08-31
DK202100049U1 (en) 2021-06-08

Similar Documents

Publication Publication Date Title
US5666103A (en) Wireless safety indicator control system for towed vehicles
US5920128A (en) Trailer ABS monitoring and warning system
EP1110096B1 (en) Vehicle electrical circuit failure monitor
US20090219148A1 (en) Wireless vehicle trailer monitoring and control system
US7425088B2 (en) Vehicle running light system
US20090122571A1 (en) Smart Lights
US20060028327A1 (en) Wireless replication, verification, and tracking apparatus and methods for towed vehicles
US10352978B2 (en) Device, system and method for wirelessly testing trailer brake control unit
EP1949134A2 (en) Object detection system
US11850901B2 (en) Control system for a towed vehicle
US20150061853A1 (en) Repeater module for tire pressure monitoring system
US20210152209A1 (en) High frequency communication apparatus for vehicle
US20240140303A1 (en) Multifunction vehicle lamp
US20140145837A1 (en) Method and apparatus for providing reverse lights to a trailer
EP1681207B1 (en) Channel activating device with a multipolar electrical connector of a hitch devices of a vehicle
DK201870569A1 (en) Wireless Trailer Indication System
US11433720B2 (en) Coupling control module for a trailer coupling
US20220388360A1 (en) Towable Asset with Automated Monitoring
WO2003066376A1 (en) A vehicle accessory
US20210309194A1 (en) Trailer management system
RU2712368C1 (en) Wireless control system for switching on light signals of radio-controlled lamps of a road-train
TW201501967A (en) Relay module of tire pressure detection system
CN112654530A (en) Vehicle lamp
CN216268970U (en) Two-way communication's tail lamp system and vehicle
CN215121277U (en) Vehicle lighting unit and vehicle lighting system

Legal Events

Date Code Title Description
PAT Application published

Effective date: 20200305

PHB Application deemed withdrawn due to non-payment or other reasons

Effective date: 20200918