CN103477354B - The method of the management data between the RFID marker carried by tire and the sensor carried by wheel rim - Google Patents

Abstract

The method allows to management and relates to including carrying the tire (12) of RFID marker (16) and carrying includes the data of assembly (10) of wheel rim (14) of wheel module (22) of at least one sensor (P, T).Assembly (10) may be at various state, specifically, is arranged on tire (12) on wheel rim (14) wherein to form the installment state of mounting assembly (10) (being also referred to as intended to the wheel of equipment motor vehicle).According to the method, data are transmitted between RFID marker (16) and wheel module (22) via temporary location (28), and temporary location (28) separates with mounting assembly (10) and motor vehicles, including the device (42,50,52,54) for transmitting data.These terms are that the data of RFID data are stored in wheel module (22).Wheel module (22) includes at least one tire pressure sensor (P), and the RFID data being stored in wheel module (22) is wiped free of when the pressure that pressure transducer (P) detects is less than or equal to predetermined pressure threshold.

Description

Management data between the RFID marker carried by tire and the sensor carried by wheel rim Method

Technical field

The present invention relates to data management field, on the one hand data are included in the RFID being connected to tire In (RF identification) labelling, on the other hand data are included in and include being connected to mounted thereon wheel In the wheel module of at least one sensor of the wheel rim of tire.

Background technology

The tire being arranged on wheel rim forms the mounting assembly being generally called wheel.Wheel is intended to peace Dress is on the rolling stock.

There is known mode, it is based on being known as TPMS (system for monitoring pressure in tyre) skill The pressure of mounting assembly is monitored with the help of the device of art.In the art, wheel rim carrying includes One or more sensors (generally include tire pressure sensor and the air being included in tire Temperature sensor) wheel module.Wheel module also includes microcontroller, and microcontroller is joined It is equipped with data storage memory, it is particularly possible to process the data of sensor supply.

Wheel module is intended to be communicated with TPMS unit by radio frequency, and TPMS unit is usual Separate with the vehicle of mounting assembly and this assembly mounted thereon.TPMS unit includes user interface And microcontroller.

There is also known mode, wheel module is fastened to the surface of tire by it, such as, pass through Bonding sticking patch after correcting tire.Satchel can also be provided during manufacturing tire, and After correcting, wheel module is injected in this satchel.

Wheel module and TPMS unit each include wireless network module, thus they can To be communicated with each other by radio frequency.Normally, from TPMS unit towards wheel module Communication on direction occurs at low frequency, such as 125kHz, and from wheel module towards TPMS Communication on the direction of unit occurs at hyperfrequency, such as 315MHz, 433MHz or 868 MHz。

Generally portable TPMS unit is determined for the parameter of wheel module, and If necessary, may be used for collecting the measurement result of the sensor being derived from this wheel module.

Usually, wheel module can also be with the receptor on the vehicle of mounted thereon wheel Communicate.

There is also known mode, the identification data being used for tire are stored in and are connected to tire by it RFID marker in.This labelling generally includes formation microcontroller, is configured with for storing tire Identify the chip of the memorizer of data (if necessary, being used for storing other data).

There is known mode, it makes RFID marker and wheel module and communicates with each other, especially It is disclosed in JP 2006282091.To this end, wheel module is stored in equipped with for reading The device of the data in RFID marker.

Data (particularly relating to the identification of tire) are made to download to for reading the device of RFID marker The memorizer of wheel module.Thus, the measurement relating to the sensor of this module can be tied by module The data transmission of fruit, to TPMS unit on vehicle or receptor, makes they and tire simultaneously Identification data be associated.

But, make each wheel module and therefore make each wheel of motor vehicles equipped with for The device reading RFID marker is relatively costly.This is because, some vehicles, especially Therefore heavy goods vehicle, including very many wheels, and include very many wheel modules.Therefore, In such vehicle, it is integrated into any supplementary equipment of wheel module, the most any RFID marker reads equipment, the quantity of wheel on vehicle at double.RFID marker reads equipment Multiplication add the cost that the wheel group with vehicle is associated.

The purpose of the present invention is in particular so that wheel module can transmit the sensor relating to this module The data that are associated of the data with the identification relating to tire of measurement result, without will RFID marker reading device is integrated into module, and originally the data of the identification being directed to tire comprise In RFID marker.

Summary of the invention

To this end, the present invention especially proposes to relate to including the management data of the assembly of tire and wheel rim Method, tire carrying RFID marker, and assembly carrying include the wheel of at least one sensor Module, assembly is at different conditions, and tire is arranged on wheel rim with shape the most wherein Become the installment state of mounting assembly (being also referred to as intended to be installed to the wheel of motor vehicles), wherein Method includes:

-data are transmitted between RFID marker and wheel module via temporary location, middle single Unit separates with mounting assembly and motor vehicles, includes data transmission device；And

-these data of will be called RFID data are stored in wheel module；

It is characterized in that, wheel module includes the pressure transducer of at least one tire, and deposits The pressure that storage RFID data in wheel module detects at pressure transducer is less than or equal to It is wiped free of during predetermined pressure threshold.

As the result of the present invention, with any mounting assembly and the motor vehicles of this mounting assembly of carrying Separate single temporary location is used against the wheel management of one or more vehicle and exists Data transmission between RFID marker and the wheel module being installed to wheel.

Single temporary location can include generally in TPMS unit and RFID tag reader The all functions created.Therefore, temporary location can pass between RFID marker and wheel module Transmission of data, is integrated into each wheel module without by RFID marker reading device.

And, as the result of the present invention, wheel module can transmit towards suitable receiver will Relate to the data of the measurement result of module sensors and the RFID data being stored in wheel module The one group of data being associated.

Normally, mounting assembly is intended for attended operation, such as, when the pressure in mounting assembly When power falls below predetermined threshold value (such as arriving zero level), re-type.Pass through The RFID data that erasing is stored in wheel module, can avoid corresponding to from wheel removal The RFID data of the inefficacy of tire is retained in this module.

Other optional features of the method for this management data are illustrated below.

When the assembly including tire and wheel rim is in predetermined state (for instance in installing State in journey, state, the installment state of tyre inflating or the peace of leakage of tyre after installation Dress state) time, between RFID marker and wheel module, transmit data.

Including some states of the assembly of tire and wheel rim, for instance in the state in installation process Or the installment state of leakage of tyre, show that assembly is in for installing or safeguarding the most true of assembly Fixed position.There is provided for transmitting number between RFID marker in this position and wheel module According to temporary location be useful, and be therefore in the most true when the assembly including tire and wheel rim During fixed state, transmission RFID data is suitable, and predetermined state occurs in corresponding to it Equipped with in the predetermined position of temporary location.

In the case of wheel module includes the pressure transducer of at least one tire, when following feelings Towards the data of wheel module transmission RFID marker when condition occurs:

-include that the assembly of tire and wheel rim is in predetermined installment state, and

-do not have RFID data to be stored in wheel module.

Or operator can be passed through or automatically send data transfer request, in order to make wheel The data of module sensors supply can be associated with RFID data as early as possible.

Data are transmitted towards wheel module from RFID marker, and by supplementing that temporary location is supplied Data, such as, relate to the data of the attended operation carried out on tire, at this data transmission procedure In be added in these RFID data.

Due to when including that the assembly of tire and wheel rim is in the predetermined position for attended operation When putting, data will be likely to transmit towards wheel module from RFID marker, so, utilize this number The supplementary data (such as indicate and performing tire transformation operation) of attended operation is related to according to transmission transmission It is suitable.

The present invention also proposes data transmission unit, it is characterised in that described data transmission unit profit The temporary location for data transmission is formed by the method for the management data according to the present invention.

According to other optional features of this data transmission unit,

-unit includes:

-between unit formed between and RFID marker and at temporary location and car The device of the cordless communication network between wheel module,

The device of-formation microcontroller, and

The device of-formation user interface；

-unit includes:

-first module and second unit, be associated with wheel module and RFID marker respectively,

-the device of communication network that is formed between first module and second unit,

-formation includes the first wireless network module being arranged in first module and is arranged in The device of the wireless network of the second wireless network module in second unit, the first wireless network mould Block is intended to communicate with wheel module, and second wireless network module is intended to carry out with RFID marker Communication,

-form the first microcontroller including being arranged in first module and second unit The device of the microcontroller of device and the second microcontroller,

-formed include the first interface that is arranged in first module and second unit and The device of the user interface of the second interface；

-the device of communication network that is formed between first module and second unit is that serial is wired Type；

-unit forms portable components.

The present invention also proposes the equipment for mounting tyre on wheel rim, it is characterised in that this dress Put and carry the data transmission unit according to the present invention.

Due to when including state that the assembly of tire and wheel rim is in installation process or just having installed During state afterwards, data are likely to transmit towards wheel module from RFID marker, so will bag The temporary location including data transmission device is integrated into the equipment possibility for mounting tyre on wheel rim It is suitable.In this case, temporary location becomes fixed cell.

The present invention more particularly to private motor vehicles, SUV (sport utility vehicle), Sulky vehicle (especially motorcycle), airborne vehicle and (the lightest selected from lorry, heavy vehicle Rail vehicle, bus and such as truck, tractor and the haulage vehicle of trailer) industry Vehicle and such as agricultural vehicle or the off-road vehicle of civil engineering vehicle and other transports Or safeguard vehicle.

Accompanying drawing explanation

According to only being provided by example and the description below of reference accompanying drawing, will become more apparent that understanding The present invention, accompanying drawing includes single accompanying drawing, and this single accompanying drawing is to include that data pass according to the present invention The schematic diagram of one group of device of the management data of defeated unit, this group device allows to use basis The method of the management data of the present invention.

The assembly 10 of tire 12 and wheel rim 14 is included shown in single accompanying drawing.

Detailed description of the invention

Assembly 10 may be at different conditions, especially the installment state shown in figure.At this shape In state, tire 12 is arranged on wheel rim 14 to form mounting assembly, also referred to as wheel.Install Assembly is intended to be installed to motor vehicles.

Assembly 10 also includes the RFID marker 16 being connected to tire 12 in a known way.This mark Note 16 includes chip 18, and chip 18 forms the microcontroller being configured with memorizer 20.This storage Device 20 is intended to storage and is referred to as the data of RFID data, and RFID data includes for tire 12 Identify data, if necessary, including other data relevant to the tire 12 related to.

Wheel rim 14 carries wheel module 22, and wheel module 22 includes one or more sensor； Such as, as shown in FIG., during wheel module 22 includes pressure transducer P and the tire of tire The temperature sensor T of forced air.

Wheel module 22 also includes the microcontroller 24 being configured with data storage memory 26.

Figure also illustrates that temporary location 28, temporary location 28 and mounting assembly 10 and be intended to carry The motor vehicles of this assembly 10 separately, and include data transmission device.

In the example illustrated in the drawings, temporary location 28 is by for being arranged on wheel rim by tire 12 Legacy equipment 30 on 14 carries.

In variant, temporary location 28 can form portable components.

In the example illustrated, temporary location 28 includes marking with wheel module 22 and RFID respectively Remember 16 first module 32 being associated and second units 34.

First module 32 is to include the TPMS unit of user interface 36 and microcontroller 38. TPMS unit 32 is intended to be communicated with wheel module 22 by radio frequency.To this end, wheel module 22 include wireless network module 40.Similarly, TPMS unit includes wireless network module 42. Normally, the communication between wheel module 22 and TPMS unit 32 according to communication direction, Occur at different frequency.Therefore usual, from TPMS unit 32 towards wheel module 22 side Communication upwards occurs at low frequency, such as 125kHz, and from wheel module 22 towards TPMS Communication in cell orientation occurs at hyperfrequency, such as 315MHz, 433MHz or 868 MHz。

Second unit 34 is formed and includes user interface 44 and the RFID unit of microcontroller 46. RFID unit can include PDA (personal digital assistant).

RFID marker 16 and RFID unit 34 be intended to by radio frequency with communicate with each other.For This, RFID marker 16 includes wireless network module 48.Similarly, RFID unit 34 includes Wireless network module 50.

Generally, the communication between RFID marker 16 and RFID unit 34 occurs at hyperfrequency.

Therefore, wireless network module 40,42,48,50 forms device for wireless communications, Radio communication is on the one hand between temporary location 28 and RFID marker 16, on the other hand in centre Between unit 28 and wheel module 22.

It addition, constitute, after microcontroller 38 and 46 combination, the microcontroller forming temporary location 28 Constitute, after the device of device, and user interface 36 and 44 combination, the use forming temporary location 28 The device of family interface.

Therefore, in variant, form the device of cordless communication network, form the dress of microcontroller The device of the user interface putting and being formed temporary location 28 can be combined into single unit rather than As shown in example shown in be distributed between TPMS unit 32 and RFID unit 34.

Temporary location 28 farther includes to be formed between TPMS unit 32 and RFID unit 34 The device of communication network.In the example illustrated, it is mono-that these devices include being arranged in TPMS Cable network module 52 in unit 28 and the cable network module being arranged in RFID unit 34 54.Mixed-media network modules mixed-media 52 and 54 is by 56 (such as, USB (USB (universal serial bus)) connected in series Or RS 232 connects) interconnection.In variant, it is formed at TPMS unit 32 and RFID unit The device of the communication network between 34 can be radio-type.

Accompanying drawing also illustrates that terminal 58, and terminal 58 can be separated on vehicle or with vehicle.Preferably, Terminal 58 is equipped with data base 60.

Wheel module 22 is intended to communicate with terminal 58, such as via being positioned on vehicle in Between terminal 62 communicate.If necessary, this intermediate terminals 62 can be from the different cars of vehicle Multiple wheel modules of wheel carrying receive data.

Intermediate terminals 62 e.g. RCU (receptor control unit) type.

Therefore, the mixed-media network modules mixed-media 40 of wheel module 22 is intended to be entered with intermediate terminals 62 by radio frequency Row communication.In the example illustrated, by serial cable network (such as, intermediate terminals 62 is intended to CAN (controller local area network) bus 64) with terminal 58 and more specifically with data base 60 communicate.

In variant, the communication between intermediate terminals 62 and terminal 58, more specifically in Between communication between terminal 62 and data base 60 can pass through GPRS (general packet radio service) The wireless network of type occurs.

Data exchange between wheel module 22 and terminal 58 can periodically occur or respond Occur in a turn-off request.

Temporary location 28 may be used for relating to including carrying RFID according to the management of following management method The data of the assembly 10 of the tire 12 of labelling 16 and the wheel rim 14 of carrying wheel module 22.Under Face definition relates to the step of the method for the present invention.

According to the method, data via temporary location 28 at RFID marker 16 and wheel module Transmit between 22.

Preferably, these data between RFID marker 16 and wheel module 22 are transmitted at assembly 10 occur when being in predetermined state, for instance in the state in installation process, install it After state (especially first install after), the installment state of tyre inflating or leakage of tyre Installment state.

And preferably, formulate regulation with the request data when following situation occurs from RFID marker 16 transmit towards wheel module 22:

-assembly 10 is in predetermined installment state, and

-do not have RFID data to be stored in wheel module 22.

It is therefore preferable that program is as follows.

First, tire 12 is arranged on wheel rim 14 and by tyre inflating by operator.Afterwards, Assembly 10 is in the installment state of tyre inflating.

Thereafter, in this state of assembly 10, such as when operator asks via terminal 58, Or in response to the wheel module 22 not having RFID data to be stored in its memorizer 26 being detected When automatically asking, RFID unit 34 reads and is stored in the memorizer 20 of RFID marker 16 In data and then transmit them to TPMS unit 32.Afterwards, this unit 32 is by RFID Data are transferred to wheel module 22, in order to these RFID data are stored in depositing of this module 22 In reservoir 26.

Therefore, the data transmitted towards wheel module 22 from RFID marker 16 are stored in wheel mould In block 22, or more specifically it is stored in the memorizer 26 of this module.

If necessary, when TPMS unit 32, RFID data is transmitted towards wheel module 22 Time, the supplementary data that TPMS unit 32 or RFID unit 34 are supplied is increased to these RFID Data, such as, relate to the maintenance carried out thereon before being arranged on wheel rim 14 by tire 12 The data of operation.

After RFID data has been stored in the memorizer 26 of wheel module, assembly 10 is permissible It is arranged on vehicle, such as equipped with terminal 58 and the vehicle of intermediate terminals 62.Afterwards, car Wheel assembly 22 can transmit will relate to sensor P's and T towards intermediate terminals 62 and terminal 58 One group of data that data are associated with the RFID data being stored in memorizer 26.Therefore, number Can be by the measurement result of sensor and the RFID data allowing to identification tire 12 according to storehouse 60 It is associated.

If the pressure detected by pressure transducer P is less than or equal to predetermined pressure threshold, It is generally near the threshold value of zero-pressure, is stored in the RFID data in wheel module 22 such as with automatically Mode be wiped free of.Therefore, when re-type 12, it is necessary to the tire being replaced is let out Gas, and the data of RFID of tire therefore relating to remove from assembly 10 are not stored in wheel mould In the memorizer 26 of block 22.

Claims (13)

1. the management number relating to including the assembly (10) of tire (12) and wheel rim (14) According to method, described tire carrying RFID marker (16), and described assembly carrying include to The wheel module (22) of a few sensor (P, T), described assembly (10) is at Different conditions, wherein:

-data via temporary location (28) at described RFID marker (16) and described wheel mould Transmit between block (22), described temporary location (28) and mounting assembly (10), motor vehicles Separately, described temporary location includes data transmission device (42,50,52,54)；And

-these data being referred to as RFID data are stored in described wheel module (22)；

It is characterized in that, sensor (P, T) is the pressure transducer (P) of tire, and works as When the pressure that described pressure transducer (P) detects is less than or equal to predetermined pressure threshold, The RFID data being stored in described wheel module (22) is wiped free of.

Method the most according to claim 1, wherein, described different conditions includes described wheel Tire (12) is installed on described wheel rim (14) to form the installation shape of mounting assembly (10) State, mounting assembly (10) is the wheel for installation into motor vehicles.

Method the most according to claim 2, wherein, when include described tire (12) and When the assembly (10) of described wheel rim (14) is in predetermined state, data are at described RFID Transmit between labelling (16) and described wheel module (22).

Method the most according to claim 3, wherein, described predetermined state includes: The state that is in installation process, install after state, the peace inflated of described tire (12) The installment state that dress state or described tire (12) lose heart.

Method the most according to claim 4, wherein, when following situations occurs data from Described RFID marker (16) is requested towards the transmission of described wheel module (22):

-include that the assembly (10) of described tire (12) and described wheel rim (14) is in advance The installment state determined, and

-do not have the data of RFID data to be stored in described wheel module (22).

6., according to the method according to any one of claim 1-5, wherein data are from described RFID Labelling (16) transmits towards described wheel module (22), and described temporary location (28) The supplementary data of supply is added to these RFID data being in this data transmission procedure.

Method the most according to claim 6, wherein, supplementary data includes relating to described The data of the attended operation carried out on tire (12).

8. a data transmission unit, it is characterised in that described data transmission unit is according to right Require that the method according to any one of 1-7 forms the temporary location (28) for data transmission.

Data transmission unit the most according to claim 8, including:

-be formed between described temporary location (28) and described RFID marker (16) and The dress of the cordless communication network between described temporary location (28) and described wheel module (22) Put (42,50),

The device of-formation microcontroller (38,46), and

The device of-formation user interface (36,44).

Data transmission unit the most according to claim 9, including:

-first module (32) and second unit (34), described first module (32) and institute State second unit (34) respectively with described wheel module (22) and described RFID marker (16) It is associated,

-it is formed at the communication between described first module (32) and described second unit (34) The device (52 to 56) of network,

-form the first wireless network module (42) including being arranged in described first module (32) Wireless network with the second wireless network module (50) being arranged in described second unit (34) The device of network, wherein said first wireless network module (42) is intended to and described wheel module (22) Communicating, described second wireless network module (50) is intended to and described RFID marker (16) Communicate,

-formation includes being arranged in described first module (32) and described second unit (34) In the first microcontroller (38) and the device of the second microcontroller (46),

-formation includes being arranged in described first module (32) and described second unit (34) In first interface (36) and the device of user interface of the second interface (44).

11. data transmission units according to claim 10, wherein, are formed at described The device (56) of the communication network between Unit one (32) and described second unit (34) is Serial wire type.

12. data transmission units described in any one in-11 according to Claim 8, are formed just Take formula assembly.

13. 1 kinds for the equipment of mounting tyre on wheel rim, it is characterised in that described is used for On wheel rim described in the equipment carrying any one in-11 according to Claim 8 of mounting tyre in Between unit (28).