TWI614731B - Method for assigning wheels to wireless transmitters and vehicle system thereof - Google Patents
Method for assigning wheels to wireless transmitters and vehicle system thereof Download PDFInfo
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Abstract
本發明提供一種輪胎與無線發射裝置的配對方法，包含下列步驟：以時距持續記錄輪胎的轉動資料於處理器；使其中一無線發射裝置於第一時間及第二時間分別發射第一訊號及第二訊號；及提供比對步驟利用處理器接收第一訊號及第二訊號，第一訊號及第二訊號發出後至處理器接收之前皆具有一延遲時間，處理器接收第一訊號及第二訊號後扣除延遲時間回推得到相對第一時間的轉動資料及相對第二時間的轉動資料，處理器比對第一時間的轉動資料及第二時間的轉動資料，且處理器將轉動最接近整數圈的一輪胎與前述一無線發射裝置配對，以提高配對正確度。 The invention provides a method for pairing a tire with a wireless transmitting device, which includes the following steps: continuously recording tire rotation data in a processor at a time interval; and enabling one of the wireless transmitting devices to transmit a first signal at a first time and a second time respectively; The second signal; and providing a comparison step using the processor to receive the first signal and the second signal, after the first signal and the second signal are sent out and before the processor receives a delay time, the processor receives the first signal and the second signal After the signal is subtracted, the delay time is pushed back to obtain the rotation data relative to the first time and the rotation data relative to the second time. The processor compares the rotation data of the first time and the rotation data of the second time, and the processor will rotate the closest integer. A tire in the circle is paired with the aforementioned wireless transmitting device to improve the accuracy of pairing.
Description
本發明是有關於一種輪胎配對方法及戴具系統，且尤其是有關一種輪胎與無線發射裝置的配對方法及其戴具系統。 The present invention relates to a tire pairing method and a wearing system, and more particularly, to a tire pairing method and a wireless transmitting device and a wearing system thereof.
現代人多以車輛代步，如機車、轎車或公車等，因此車輛行進安全十分受到重視，而除了一般的機構零件需要定期檢查保養外，平時行車前或行車時的胎壓偵測也非常重要。 Modern people often use vehicles to move, such as locomotives, cars or buses. Therefore, the safety of vehicle travel is very important. In addition to the regular inspection and maintenance of regular mechanical parts, tire pressure detection before or during driving is also very important.
胎壓不正常會降低車輛操控性，並影響剎車性能。若胎壓過低容易增加油耗及輪胎磨損，反之，若胎壓過高，則有可能會增加爆胎機會而產生危險。是以各國遂漸立法規定車輛需加裝胎壓偵測系統，避免因胎壓異常造成交通事故發生。 Abnormal tire pressure can reduce vehicle handling and affect braking performance. If the tire pressure is too low, it is easy to increase fuel consumption and tire wear. On the other hand, if the tire pressure is too high, it may increase the chance of puncture and cause danger. Therefore, various countries have gradually established legislation to require vehicles to install a tire pressure detection system to avoid traffic accidents due to abnormal tire pressure.
一般的胎壓偵測器會透過無線訊號傳送胎壓偵測結果及識別碼，而在初始安裝胎壓偵測器於輪胎時即會先進行識別碼的配對，將各胎壓偵測器的識別碼分配至各安裝的輪胎，以使系統可以分辨訊號來源。然而，輪胎在行駛一段時間 後，因為前後左右輪磨耗程度不一，故會定期進行輪胎位置的更換，如此一來，輪胎的位置與初始的位置不同，因此必需重新確認各胎壓偵測器的所對應的輪胎位置。但現有的輪胎與胎壓偵測器配對方式容易出現配對錯誤，因此仍有其改善的空間。 The ordinary tire pressure detector transmits the tire pressure detection result and the identification code through a wireless signal. When the tire pressure detector is initially installed on the tire, the identification code is first paired to match the tire pressure detector. The identification code is assigned to each installed tire so that the system can identify the source of the signal. However, the tires have been driving for a while Later, because the front, rear, left, and right wheels wear differently, the tire position is changed periodically. As a result, the tire position is different from the original position, so the tire position corresponding to each tire pressure detector must be reconfirmed. However, the existing pairing methods of tires and tire pressure detectors are prone to pairing errors, so there is still room for improvement.
有鑑於此，如何有效及正確的配對輪胎與胎壓偵測器或任何安裝於輪胎上的無線發射裝置，遂成相關業者努力的目標。 In view of this, how to effectively and correctly match tires with tire pressure detectors or any wireless transmitting device mounted on the tires has become the goal of the efforts of relevant industry players.
本發明提供一種輪胎與無線發射裝置的配對方法及其戴具系統，透過處理器回推正確的無線發射裝置訊號發射時間，以取得正確的輪胎轉速資料來進行比對，增加比對的正確性。 The invention provides a pairing method of a tire and a wireless transmitting device and a wearing system thereof. The correct wireless transmitting device signal transmission time is pushed back by a processor to obtain correct tire rotation speed data for comparison and increase the correctness of the comparison. .
依據本發明之一實施例提供一種輪胎與無線發射裝置的配對方法，其應用於一載具系統，載具系統包含至少二輪胎，各輪胎內具一無線發射裝置，輪胎與無線發射裝置的配對方法包含下列步驟。以一時距持續記錄輪胎的轉動資料於一處理器；使其中一無線發射裝置於一第一時間及一第二時間分別發射一第一訊號及一第二訊號；及提供一比對步驟，利用處理器接收第一訊號及第二訊號，第一訊號發出後至處理器接收之前具有一延遲時間，第二訊號發出後至處理器接收之前亦具有延遲時間，處理器接收第一訊號後扣除延遲時間回推得到相對第一時間的轉動資料，處理器接收第二訊號後扣除延遲時間回推得到相對第二時間的轉動資料，處理器比對第一時間的轉 動資料及第二時間的轉動資料，且處理器將轉動最接近整數圈的一輪胎與前述一無線發射裝置配對。 According to an embodiment of the present invention, a method for pairing a tire with a wireless transmitting device is provided, which is applied to a vehicle system. The vehicle system includes at least two tires, each of which has a wireless transmitting device, and the pairing of the tire and the wireless transmitting device. The method includes the following steps. Continuously record tire rotation data at a time interval on a processor; enable one of the wireless transmitting devices to transmit a first signal and a second signal at a first time and a second time, respectively; and provide a comparison step using The processor receives the first signal and the second signal. After the first signal is sent, there is a delay time before the processor receives it. After the second signal is sent, it has a delay time before the processor receives it. The processor receives the first signal and deducts the delay. The time rollback can obtain the rotation data relative to the first time. The processor receives the second signal and subtracts the delay time to get back the rotation data relative to the second time. The processor compares the rotation with the first time. The moving data and the turning data at the second time, and the processor pairs a tire whose rotation is closest to an integer circle with the aforementioned wireless transmitting device.
藉此，透過處理器接收第一訊號後扣除延遲時間回推得到相對第一時間的轉動資料及接收第二訊號後扣除延遲時間回推得到相對第二時間的轉動資料，可增加配對正確性。 Therefore, the rotation data relative to the first time can be obtained by subtracting the delay time from the first signal after receiving the first signal through the processor, and the rotation data relative to the second time can be obtained by subtracting the delay time from the second signal after receiving the second signal, which can increase the accuracy of pairing.
依據前述之輪胎與無線發射裝置的配對方法，更可包含一轉彎資訊擷取步驟及一發射頻率調整步驟，利用一攝影裝置擷取一道路影像，處理器接收道路影像以預判載具系統的一轉彎資訊，第一時間與第二時間具有一時間差，處理器依轉彎資訊判定有彎道時調整前述一無線發射裝置的一發射頻率使時間差縮短。其中時距為可變動值且可設定為5至40毫秒(ms)。處理器於轉彎資訊大於一預設值時判定有彎道，轉彎資訊可是一實際道路的一邊界斜率，預設值可是一直線道路的一邊界斜率。第一訊號可包含一胎壓資料及一識別碼，且第二訊號可包含另一胎壓資料及前述識別碼。 According to the aforementioned method for pairing a tire with a wireless transmitting device, it may further include a turning information acquisition step and a transmitting frequency adjustment step. A camera device is used to capture a road image, and the processor receives the road image to predict the vehicle system's With regard to turning information, there is a time difference between the first time and the second time. When the processor determines that there is a curve according to the turning information, the processor adjusts a transmission frequency of the wireless transmitting device to shorten the time difference. The time interval is a variable value and can be set to 5 to 40 milliseconds (ms). The processor determines that there is a curve when the turn information is greater than a preset value. The turn information may be a boundary slope of an actual road, and the preset value may be a boundary slope of a straight road. The first signal may include a tire pressure data and an identification code, and the second signal may include another tire pressure data and the aforementioned identification code.
依據本發明之另一實施例提供一種載具系統，其應用於如前述之輪胎與無線發射裝置的配對方法，載具系統包含四輪胎、四無線發射裝置，處理器及四轉速偵測裝置，四無線發射裝置分別設置於各輪胎上，處理器無線連接各無線發射裝置，四轉速偵測裝置分別偵測各輪胎的各轉動資料，轉速偵測裝置訊號連接處理器以傳送各轉動資料。 According to another embodiment of the present invention, a vehicle system is provided, which is applied to the method for pairing a tire with a wireless transmitting device as described above. The vehicle system includes four tires, four wireless transmitting devices, a processor, and four speed detecting devices. Four wireless transmitting devices are respectively arranged on each tire, the processor is wirelessly connected to each wireless transmitting device, the four rotation speed detecting device detects each rotation data of each tire, and the speed detecting device signal is connected to the processor to transmit each rotation data.
依據前述之載具系統，更可包含一攝影裝置連接處理器，攝影裝置用以擷取一道路影像以傳回處理器。其中各無線發射裝置可包含一位置偵測件用以偵測對應之一輪胎的一 轉動位置。轉動資料可以一控制區域網路(Controller Area Network)有線傳回處理器。轉速偵測裝置可為防鎖死煞車系統(Anti Breaking System)或電子車身穩定系統(Electronic Stability Programmer)中的轉速感測器。 According to the aforementioned vehicle system, it may further include a camera device connected to the processor, and the camera device is used to capture a road image to return to the processor. Each wireless transmitting device may include a position detecting element for detecting a corresponding one of the tires. Turn position. The rotation data can be wired back to the processor via a Controller Area Network. The speed detection device may be a speed sensor in an Anti Breaking System or an Electronic Stability Programmer.
100‧‧‧載具系統 100‧‧‧ Vehicle System
110‧‧‧處理器 110‧‧‧ processor
120‧‧‧攝影裝置 120‧‧‧ Camera
200、200a‧‧‧輪胎與無線發射裝置的配對方法 Pairing method of 200, 200a ‧ ‧ ‧ tire and wireless transmitting device
210、220、230‧‧‧步驟 210, 220, 230‧‧‧ steps
210a、220a、230a、240a、250a‧‧‧步驟 210a, 220a, 230a, 240a, 250a ‧‧‧ steps
C‧‧‧交點 C‧‧‧ intersection
C1‧‧‧第一左側定位點 C1‧‧‧First left anchor point
C2‧‧‧第二左側定位點 C2‧‧‧Second left anchor point
C1'‧‧‧第一右側定位點 C1'‧‧‧ the first right anchor point
C2'‧‧‧第二右側定位點 C2'‧‧‧ second right anchor point
D1、D2、D3、D4‧‧‧轉速偵測裝置 D1, D2, D3, D4‧‧‧speed detection device
O‧‧‧原點 O‧‧‧ origin
P1、P2、P3、P4‧‧‧無線發射裝置 P1, P2, P3, P4‧‧‧ wireless transmitting devices
R11~R19、R21~R29‧‧‧轉動資料 R11 ~ R19, R21 ~ R29‧‧‧rotation data
R31~R39、R41~R49‧‧‧轉動資料 R31 ~ R39, R41 ~ R49‧‧‧rotation data
t1~t9‧‧‧記錄時間 t1 ~ t9‧‧‧Recording time
T1‧‧‧第一時間 T1‧‧‧ the first time
T2‧‧‧第二時間 T2‧‧‧Second time
T1'‧‧‧第一接收時間 T1'‧‧‧ First reception time
T2'‧‧‧第二接收時間 T2'‧‧‧ Second reception time
W1、W2、W3、W4‧‧‧輪胎 W1, W2, W3, W4‧‧‧ tires
△t‧‧‧延遲時間 △ t‧‧‧Delay time
(-X1，Y1)、(-X2，0)、(X1，Y1)、(X2，0)‧‧‧座標 (-X1, Y1), (-X2, 0), (X1, Y1), (X2, 0) ‧‧‧ coordinates
(-X3，Y2)、(-X4，0)、(X5，Y2)、(X6，0)‧‧‧座標 (-X3, Y2), (-X4, 0), (X5, Y2), (X6, 0) ‧‧‧ coordinates
(X7，Y7)、(X8，Y8)、(X9，Y9)、(X10，Y10)‧‧‧座標 (X7, Y7), (X8, Y8), (X9, Y9), (X10, Y10) coordinates
第1圖繪示依照本發明一實施例之一種戴具系統的架構示意圖；第2圖繪示依照本發明另一實施例之一種輪胎與無線發射裝置的配對方法的步驟流程圖；第3A圖繪示第2圖之輪胎與無線發射裝置的配對方法的一比對示意圖；第3B圖繪示第2圖之輪胎與無線發射裝置的配對方法的另一比對示意圖；第4圖繪示依照本發明又一實施例之一種輪胎與無線發射裝置的配對方法的步驟流程圖；第5A圖繪示第4圖之輪胎與無線發射裝置的配對方法的一轉彎資訊擷取示意圖；第5B圖繪示第4圖之輪胎與無線發射裝置的配對方法的另一轉彎資訊擷取示意圖；以及第5C圖繪示第4圖之輪胎與無線發射裝置的配對方法的再一轉彎資訊擷取示意圖。 Fig. 1 is a schematic diagram showing the architecture of a wearing system according to an embodiment of the present invention; Fig. 2 is a flowchart showing the steps of a method for pairing a tire with a wireless transmitting device according to another embodiment of the present invention; Fig. 3A FIG. 2 shows a comparison diagram of the pairing method of the tire and the wireless transmitting device in FIG. 2; FIG. 3B shows another comparison diagram of the pairing method of the tire and the wireless transmitting device in FIG. 2; FIG. 5A shows a turning information acquisition diagram of the method for pairing a tire and a wireless transmitting device according to a fourth embodiment of the present invention; FIG. 5B illustrates a turning information acquisition method; FIG. 4 is another schematic diagram of turning information acquisition of the tire and wireless transmitting device pairing method of FIG. 4; and FIG. 5C is another schematic view of turning information retrieval of the pairing method of the tire and wireless transmitting device of FIG. 4.
以下將參照圖式說明本發明之實施例。為明確說明起見，許多實務上的細節將在以下敘述中一併說明。然而，閱讀者應瞭解到，這些實務上的細節不應用以限制本發明。也就是說，在本發明部分實施例中，這些實務上的細節是非必要的。此外，為簡化圖式起見，一些習知慣用的結構與元件在圖式中將以簡單示意的方式繪示；並且重複之元件將可能使用相同的編號表示。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. For the sake of clarity, many practical details will be explained in the following description. The reader should understand, however, that these practical details should not be used to limit the invention. That is, in some embodiments of the present invention, these practical details are unnecessary. In addition, in order to simplify the drawings, some conventional structures and elements will be shown in the drawings in a simple and schematic manner; and repeated elements may be represented by the same number.
請參閱第1圖，其中第1圖繪示依照本發明一實施例之一種載具系統100的架構示意圖。載具系統100包含四輪胎W1、W2、W3、W4、四無線發射裝置P1、P2、P3、P4，一處理器110及四轉速偵測裝置D1、D2、D3、D4，四無線發射裝置P1、P2、P3、P4分別設置於各輪胎W1、W2、W3、W4上，處理器110無線連接各無線發射裝置P1、P2、P3、P4，四轉速偵測裝置D1、D2、D3、D4分別偵測各輪胎W1、W2、W3、W4的各轉動資料，轉速偵測裝置D1、D2、D3、D4訊號連接處理器110以傳送各轉動資料。 Please refer to FIG. 1, which is a schematic diagram of a carrier system 100 according to an embodiment of the present invention. The vehicle system 100 includes four tires W1, W2, W3, W4, four wireless transmitting devices P1, P2, P3, and P4, a processor 110, four speed detecting devices D1, D2, D3, and D4, and four wireless transmitting devices P1. , P2, P3, and P4 are set on the tires W1, W2, W3, and W4, respectively, and the processor 110 wirelessly connects the wireless transmitting devices P1, P2, P3, and P4, and the four speed detection devices D1, D2, D3, and D4 are respectively Each rotation data of each tire W1, W2, W3, W4 is detected, and the rotation speed detection devices D1, D2, D3, D4 are connected to the processor 110 to transmit each rotation data.
更詳細的說，載具系統100是一汽車系統，輪胎W1的設置位置為右前方，輪胎W2的設置位置為右後方，輪胎W3的設置位置為左前方，以及輪胎W4的設置位置為左後方。無線發射裝置P1對應安裝於輪胎W1，無線發射裝置P2對應安裝於輪胎W2，無線發射裝置P3對應安裝於輪胎W3，以及無線發射裝置P4對應安裝於輪胎W4。在其他實施例中，載具系統100是亦可以是機車、公車、卡車或其他具有二輪胎以上的交 通工具，不限於此，而無線發射裝置的數目需與輪胎數目對應。 In more detail, the vehicle system 100 is an automobile system. The setting position of the tire W1 is front right, the setting position of the tire W2 is rear right, the setting position of the tire W3 is front left, and the setting position of the tire W4 is rear left. . The wireless transmitting device P1 is correspondingly mounted on the tire W1, the wireless transmitting device P2 is correspondingly mounted on the tire W2, the wireless transmitting device P3 is correspondingly mounted on the tire W3, and the wireless transmitting device P4 is correspondingly mounted on the tire W4. In other embodiments, the vehicle system 100 may be a locomotive, a bus, a truck, or other vehicles with more than two tires. Communication tools are not limited to this, and the number of wireless transmitting devices needs to correspond to the number of tires.
四轉速偵測裝置D1、D2、D3、D4為一般用於防鎖死煞車系統(Anti-lock Braking System，ABS)的轉速感測器，其可以偵測輪胎的轉動角度。仔細的說，各輪胎W1、W2、W3、W4上設有一齒輪盤(未繪示)，齒輪盤上可包含複數凸齒(未繪示)，當凸齒對應到轉速偵測裝置D1、D2、D3、D4時，會不斷產生脈波訊號，當處理器110接到此些脈波訊號後，即可判定各輪胎W1、W2、W3、W4的轉速、轉角或圈數等轉動資料。轉速偵測裝置D1、D2、D3、D4的結構及訊號產生方式非本發明重點，在此不再贅述。另外，轉速偵測裝置亦可為電子車身穩定系統(Electronic Stability Programmer)中可提供輪胎轉速的轉速感測器。 The four speed detection devices D1, D2, D3, and D4 are speed sensors commonly used in anti-lock braking systems (ABS), which can detect the rotation angle of the tire. Carefully said, each tire W1, W2, W3, W4 is provided with a gear plate (not shown). The gear plate may include a plurality of convex teeth (not shown). When the convex teeth correspond to the rotational speed detection devices D1, D2 When D3, D3, D4, pulse wave signals will be continuously generated. When the processor 110 receives these pulse wave signals, it can determine the rotation data such as the speed, rotation angle or number of revolutions of each tire W1, W2, W3, and W4. The structure of the rotation speed detection devices D1, D2, D3, and D4 and the signal generation method are not the focus of the present invention, and will not be repeated here. In addition, the speed detection device can also provide a speed sensor for the tire speed in the Electronic Stability Programmer.
於本實施例中，轉速偵測裝置D1、D2、D3、D4所測得的轉動資料是透過有線的方式傳到處理器110，更佳的是透過控制區域網路(Controller Area Network)有線傳回處理器110，且可設定轉速偵測裝置D1、D2、D3、D4以一固定時間間距將轉動資料傳回處理器110，再由處理器110依序記錄轉動資料及其所對應之時間。 In this embodiment, the rotation data measured by the rotational speed detection devices D1, D2, D3, and D4 is transmitted to the processor 110 through a wired method, and more preferably, it is transmitted through a controller area network. Return to the processor 110, and the rotation speed detecting devices D1, D2, D3, and D4 can be set to transmit the rotation data to the processor 110 at a fixed time interval, and the processor 110 records the rotation data and the corresponding time in sequence.
各無線發射裝置P1、P2、P3、P4可包含一位置偵測件(未繪示)用以偵測任一輪胎W1、W2、W3、W4的一轉動位置，位置偵測件可為重力感應器(G-sensor)，其藉由重力大小來判斷目前輪胎的轉動位置，且無線發射裝置P1、P2、P3、P4於重力感應器感測到一定大小時，才會發出訊號。例如，當輪胎的轉動角度為0度時，重力感應器所感應到的重力最大， 此時發射一無線訊號，之後輪胎開始轉動，待重力感測器再度感應到最大重力時，表示輪胎角度再度轉回0度，而可以再次發射無線訊號。 Each wireless transmitting device P1, P2, P3, and P4 may include a position detection element (not shown) for detecting a rotational position of any of the tires W1, W2, W3, and W4. The position detection element may be a gravity sensor. G-sensor, which determines the current tire rotation position based on the magnitude of gravity, and the wireless transmitting devices P1, P2, P3, and P4 only send out signals when the gravity sensor senses a certain size. For example, when the tire's rotation angle is 0 degrees, the gravity sensor detects the maximum gravity. At this time, a wireless signal is transmitted, and then the tire starts to rotate. When the gravity sensor senses the maximum gravity again, it indicates that the tire angle is turned back to 0 degrees, and the wireless signal can be transmitted again.
請參閱第2圖、第3A圖及第3B圖，並請一併參閱第1圖，其中第2圖繪示依照本發明另一實施例之一種輪胎與無線發射裝置的配對方法200的步驟流程圖，第3A圖繪示第2圖之輪胎與無線發射裝置的配對方法200的一比對示意圖，第3B圖繪示第2圖之輪胎與無線發射裝置的配對方法200的另一比對示意圖。第1圖所示之載具系統100是應用輪胎與無線發射裝置的配對方法200來完成輪胎W1、W2、W3、W4與無線發射裝置P1、P2、P3、P4的配對，輪胎與無線發射裝置的配對方法200包含步驟210、步驟220及步驟230。 Please refer to FIG. 2, FIG. 3A, and FIG. 3B, and please also refer to FIG. 1, where FIG. 2 illustrates a step flow of a method 200 for pairing a tire with a wireless transmitting device according to another embodiment of the present invention. FIG. 3A shows a comparison diagram of the method 200 for pairing the tire with the wireless transmitting device in FIG. 2, and FIG. 3B shows another comparison diagram of the method 200 for pairing the tire with the wireless transmitting device in FIG. 2. . The vehicle system 100 shown in FIG. 1 uses the pairing method 200 of a tire and a wireless transmitting device to complete the pairing of the tires W1, W2, W3, and W4 with the wireless transmitting devices P1, P2, P3, and P4. The tire and the wireless transmitting device The pairing method 200 includes steps 210, 220, and 230.
於步驟210中，以一時距持續記錄輪胎W1、W2、W3、W4的轉動資料於一處理器110，時距為可變動值，也就是說，時距可變動且一般可設定為5~40毫秒(ms)。四轉速偵測裝置D1、D2、D3、D4會於載具系統100行進中不斷偵測各輪胎W1、W2、W3、W4的轉動資料，且將轉動資料傳至處理器110，因此處理器110可依序記錄轉動資料及其所對應之時間，並得到轉動資料對應記錄時間t1~t9的資料表，如第3A圖所示。其中記錄時間t1~t9僅為示例，轉動資料會一直不斷的記錄於處理器110。 In step 210, the rotation data of the tires W1, W2, W3, and W4 are continuously recorded with a time interval on a processor 110, and the time interval is a variable value, that is, the time interval is variable and can generally be set to 5 to 40. Milliseconds (ms). The four speed detection devices D1, D2, D3, and D4 will continuously detect the rotation data of each tire W1, W2, W3, and W4 during the travel of the vehicle system 100, and transmit the rotation data to the processor 110, so the processor 110 The rotation data and the corresponding time can be recorded in sequence, and a data table corresponding to the recording time t1 to t9 of the rotation data can be obtained, as shown in FIG. 3A. The recording time t1 ~ t9 is only an example, and the rotation data is continuously recorded in the processor 110.
於步驟220中，使其中一無線發射裝置P1、P2、P3、P4於一第一時間T1及一第二時間T2分別發射一第一訊號(未標示)及一第二訊號(未標示)。 In step 220, one of the wireless transmitting devices P1, P2, P3, and P4 is caused to transmit a first signal (not labeled) and a second signal (not labeled) at a first time T1 and a second time T2, respectively.
於步驟230中，提供一比對步驟，利用處理器110接收第一訊號及第二訊號進行比對，第一訊號發出後至處理器110接收之前具有一延遲時間△t，第二訊號發出後至處理器110接收之前亦具有延遲時間△t，處理器110接收第一訊號後扣除延遲時間△t回推得到相對第一時間T1的轉動資料，處理器110接收第二訊號後扣除延遲時間△t回推得到相對第二時間T2的轉動資料，處理器110比對第一時間T1的轉動資料及第二時間T2的轉動資料，且處理器110將轉動最接近整數圈的一輪胎W1、W2、W3、W4與前述一無線發射裝置P1、P2、P3、P4配對。 In step 230, a comparison step is provided. The processor 110 receives the first signal and the second signal for comparison. There is a delay time Δt after the first signal is sent to before the processor 110 receives it, and after the second signal is sent, There is also a delay time Δt before the processor 110 receives it. The processor 110 deducts the delay time Δt after receiving the first signal and pushes back the rotation data relative to the first time T1. The processor 110 deducts the delay time △ after receiving the second signal. t push back to obtain the rotation data relative to the second time T2, the processor 110 compares the rotation data of the first time T1 and the rotation data of the second time T2, and the processor 110 will rotate a tire W1, W2 that is closest to an integer circle , W3, W4 are paired with the aforementioned wireless transmitting device P1, P2, P3, P4.
如第3A圖所示，假定無線發射裝置P1於第一時間T1及第二時間T2分別發射第一訊號及第二訊號，處理器110於第一接收時間T1'接收到第一訊號且於第二接收時間T2'接收到第二訊號，為了要取得更正確的轉動資料，處理器110會將第一接收時間T1'扣除延遲時間△t以取得對應的轉動資料R12、R22、R32、R42(指記錄時間t2時的轉動資料)，以及將第二接收時間T2'扣除延遲時間△t以取得對應的轉動資料R17、R27、R37、R47(指記錄時間t7時的轉動資料)。 As shown in FIG. 3A, it is assumed that the wireless transmitting device P1 transmits the first signal and the second signal at the first time T1 and the second time T2, respectively, and the processor 110 receives the first signal at the first receiving time T1 'and the first signal The second signal is received at the second reception time T2 '. In order to obtain more accurate rotation data, the processor 110 deducts the delay time Δt from the first reception time T1' to obtain the corresponding rotation data R12, R22, R32, R42 ( Refers to the rotation data at the recording time t2), and subtracts the delay time Δt from the second receiving time T2 'to obtain the corresponding rotation data R17, R27, R37, R47 (refers to the rotation data at the recording time t7).
因此，處理器110透過比較轉動資料R12、R22、R32、R42、R17、R27、R37、R47而找到轉動最接近整數圈的輪胎W1、W2、W3、W4。 Therefore, the processor 110 compares the rotation data R12, R22, R32, R42, R17, R27, R37, and R47 to find the tires W1, W2, W3, and W4 whose rotations are closest to the integer circle.
舉例來說，如第3B圖所示，其中第3A圖中的各轉動資料R11~R19、R21~R29、R31~R39、R41~R49皆以齒輪盤上的凸齒齒數來表示，其中本實施例的齒輪盤共有48個凸 齒，因此轉動資料R11~R19、R21~R29、R31~R39、R41~R49的齒數為累計轉動齒數除於48後所得的餘數。是以，由t1及t7的轉動資料R12、R22、R32、R42、R17、R27、R37、R47來看，因為轉速偵測裝置D1傳來的齒數為11及10，故以輪胎W1的轉動圈數最接近整數圈，所以將無線發射裝置P1配對至輪胎W1。 For example, as shown in FIG. 3B, the rotation data R11 to R19, R21 to R29, R31 to R39, and R41 to R49 in FIG. 3A are all represented by the number of convex teeth on the gear plate. In this implementation, Example of a gear plate with a total of 48 convex Therefore, the number of teeth of the rotation data R11 ~ R19, R21 ~ R29, R31 ~ R39, R41 ~ R49 is the remainder obtained by dividing the cumulative number of teeth by 48. Therefore, from the rotation data R12, R22, R32, R42, R17, R27, R37, R47 of t1 and t7, because the number of teeth transmitted by the speed detection device D1 is 11 and 10, the rotation circle of the tire W1 The number is closest to an integer circle, so the wireless transmitting device P1 is paired to the tire W1.
如果處理器110並無扣除延遲時間△t得到轉動資料R12、R22、R32、R42、R17、R27、R37、R47，而是以對應第一接收時間T1'及第二接收時間T2'的轉動資料進行比對，也就是對記錄時間t3時的轉動資料R13、R23、R33、R43及記錄時間t8時的轉動資料R18、R28、R38、R48進行比對，則因為轉速偵測裝置D2傳來的齒數為24及23，故以輪胎W2的轉動圈數最接近整數圈，所以將無線發射裝置P1配對至輪胎W2，則會導致配對錯誤的情況發生。 If the processor 110 does not deduct the delay time Δt to obtain the rotation data R12, R22, R32, R42, R17, R27, R37, R47, but the rotation data corresponding to the first reception time T1 'and the second reception time T2' Compare, that is, compare the rotation data R13, R23, R33, R43 at the recording time t3 and the rotation data R18, R28, R38, R48 at the recording time t8, because the rotation speed detection device D2 sends The number of teeth is 24 and 23, so the number of revolutions of the tire W2 is closest to an integer number of turns. Therefore, pairing the wireless transmitting device P1 to the tire W2 will cause a pairing error.
於本實施例中，第一訊號可包含一胎壓資料及一識別碼，且第二訊號可包含另一胎壓資料及前述識別碼，故處理器110進行比對時，會將此識別碼配對給輪胎W1，即可完成配對。在此要特別說明的是，上述所稱的一胎壓資料及另一胎壓資料是指同一輪胎於不同時間的胎壓資料。 In this embodiment, the first signal may include a tire pressure data and an identification code, and the second signal may include another tire pressure data and the foregoing identification code. Therefore, when the processor 110 performs a comparison, the identification code is used. Pair to tire W1 to complete pairing. It should be particularly noted here that the aforementioned one tire pressure data and the other tire pressure data refer to the tire pressure data of the same tire at different times.
請參閱第4圖、第5A圖、第5B圖及第5C圖，並請一併參閱第1圖，第4圖繪示依照本發明又一實施例之一種輪胎與無線發射裝置的配對方法200a的步驟流程圖，第5A圖繪示第4圖之輪胎與無線發射裝置的配對方法200a的一轉彎資訊擷取示意圖，第5B圖繪示第4圖之輪胎與無線發射裝置的配對方法 200a的另一轉彎資訊擷取示意圖，第5C圖繪示第4圖之輪胎與無線發射裝置的配對方法200a的再一轉彎資訊擷取示意圖。 Please refer to FIG. 4, FIG. 5A, FIG. 5B and FIG. 5C, and please also refer to FIG. 1. FIG. 4 shows a method 200 a for pairing a tire with a wireless transmitting device according to another embodiment of the present invention. FIG. 5A shows a turning information capture diagram of the pairing method 200a of the tire and the wireless transmitting device of FIG. 4, and FIG. 5B shows the pairing method of the tire and the wireless transmitting device of FIG. 4. Another turning information acquisition diagram of 200a is shown in FIG. 5C. FIG. 5C shows another turning information extraction diagram of the pairing method 200a of the tire and the wireless transmitting device in FIG.
如第1圖所示，載具系統100可更包含一攝影裝置120連接處理器110，攝影裝置120用以擷取一道路影像以傳回處理器110，其中攝影裝置120是行車攝影記錄器且裝設在載具系統100前端以拍攝道路影像，攝影裝置120可以是有線或無線連接至處理器110，不以此為限。 As shown in FIG. 1, the vehicle system 100 may further include a photographing device 120 connected to the processor 110. The photographing device 120 is used to capture a road image to return to the processor 110. The photographing device 120 is a driving photograph recorder and It is installed at the front end of the vehicle system 100 to capture road images. The photographing device 120 may be wired or wirelessly connected to the processor 110, but is not limited thereto.
如第4圖所示，輪胎與無線發射裝置的配對方法200a包含步驟210a、步驟220a、步驟230a、步驟240a及步驟250a，其中步驟210a、步驟220a、步驟230a和第2圖所述之步驟210、步驟220、步驟230相同，在此不再贅述。 As shown in FIG. 4, the method 200a for pairing a tire with a wireless transmitting device includes steps 210a, 220a, 230a, 240a, and 250a, where step 210a, step 220a, step 230a, and step 210 described in FIG. 2 Steps 220 and 230 are the same, and are not repeated here.
於步驟240a中，提供一轉彎資訊擷取步驟，其利用攝影裝置120擷取道路影像，處理器110接收道路影像以預判載具系統100的一轉彎資訊。 In step 240a, a turning information acquisition step is provided, which uses the photographing device 120 to capture a road image, and the processor 110 receives the road image to predict a turning information of the vehicle system 100.
於步驟250a中，提供一發射頻率調整步驟。第一時間T1與第二時間T2具有一時間差(未標示)，處理器110依轉彎資訊判定有彎道時調整其中一無線發射裝置P1、P2、P3、P4的一發射頻率使時間差縮短，藉此加快配對的速度。也就是說，假設第一時間T1與第二時間T2的時間差原本為1分鐘，當預判載具系統100即將轉彎時，可將第一時間T1與第二時間T2調整為10秒鐘。由於轉彎時各輪胎W1、W2、W3、W4的轉動差異較大，故此時配對的正確度較高，若可以在此段轉彎的過程中增加資料比對的次數，將可以提升配對的精準度並加快配對速度。 In step 250a, a transmission frequency adjustment step is provided. The first time T1 and the second time T2 have a time difference (not labeled). When the processor 110 determines that there is a curve according to the turning information, the processor 110 adjusts a transmission frequency of one of the wireless transmitting devices P1, P2, P3, and P4 to shorten the time difference. This speeds up pairing. That is, assuming that the time difference between the first time T1 and the second time T2 is originally 1 minute, when the vehicle system 100 is about to turn, the first time T1 and the second time T2 can be adjusted to 10 seconds. Because the rotation of the tires W1, W2, W3, and W4 is different during the turn, the accuracy of pairing is high at this time. If you can increase the number of data comparisons during this turn, the accuracy of pairing will be improved. And speed up pairing.
舉例來說，若轉動資料的比對次數需要同一無線發射器P1、P2、P3、P4與同一輪胎W1、W2、W3、W4配對成功的次數等於10次才算配對成功，則因為於一般直線行駛時輪胎W1、W2、W3、W4的轉動差異較小，因此總配對次數可能需要高達19次(例如無線發射裝置P1配對給輪胎W1為10次，其他9次配對給其他輪胎W2、W3、W4)。而由於轉彎時的輪胎W1、W2、W3、W4的轉動差異較大，故總配對次數可能只需12次(例如無線發射裝置P1配對給輪胎W1為10次，其他2次配對給其他輪胎W2、W3、W4)，故藉由發射頻率調整步驟縮短第一時間T1及第二時間T2的時間差，可以加快訊號發射速度，並於轉彎時快速完成配對。上述的配對成功的次數僅為參考，可依需求進行調整，不以此為限。 For example, if the number of comparisons of rotating data requires the same wireless transmitter P1, P2, P3, and P4 to be paired with the same tire W1, W2, W3, and W4 equal to 10 times, the pairing is successful. When driving, the tires W1, W2, W3, and W4 have a small rotation difference, so the total number of pairings may take up to 19 times (for example, the wireless transmitting device P1 is paired to the tire W1 10 times, and the other 9 times are paired to the other tires W2, W3, W4). And because the tires W1, W2, W3, and W4 have a large difference in turning when turning, the total number of pairings may only need 12 times (for example, the wireless transmitting device P1 is paired with tire W1 10 times, and the other 2 times are matched with other tires W2 , W3, W4), so by shortening the time difference between the first time T1 and the second time T2 through the transmission frequency adjustment step, the signal transmission speed can be accelerated, and pairing can be completed quickly when turning. The above-mentioned number of successful pairings is for reference only, and can be adjusted according to requirements, not limited to this.
另外，於本實施例中，處理器110可於轉彎資訊大於一預設值時判定有彎道，此時轉彎資訊可是一實際道路的一邊界斜率，預設值可是一直線道路的一邊界斜率。如第5A圖所示，其為攝影裝置120所擷取的一直線道路的道路影像，其中左前方邊界上設定一第一左側定位點C1及一第二左側定位點C2，右前方邊界上於相對第一左側定位點C1及一第二左側定位點C2點的位置上分別設定一第一右側定位點C1'及一第二右側定位點C2'點，假定一第一線段(未標示)通過第一左側定位點C1與第二左側定位點C2，一第二線段(未標示)通過第一右側定位點C1'與第二右側定位點C2'，一第三線段(未標示)通過第二左側定位點C2與第二右側定位點C2'，則第一線段與第二線段的交點C與第三線段正交處為原點O，藉此定出二維座標，並可 依據影像中的距離得到第一左側定位點C1的座標為(-X1，Y1)，第二左側定位點C2的座標為(-X2，0)，第一右側定位點C1'的座標為(X1，Y1)，第二右側定位點C2'的座標為(X2，0)。 In addition, in this embodiment, the processor 110 may determine that there is a curve when the turn information is greater than a preset value. At this time, the turn information may be a boundary slope of an actual road, and the preset value may be a boundary slope of a straight road. As shown in FIG. 5A, it is a road image of a straight road captured by the photographing device 120. A first left positioning point C1 and a second left positioning point C2 are set on the left front boundary, and the right front boundary is opposite to A first right positioning point C1 'and a second right positioning point C2' are respectively set at the positions of the first left positioning point C1 and a second left positioning point C2, assuming that a first line segment (not labeled) passes The first left positioning point C1 and the second left positioning point C2, a second line segment (not labeled) passes through the first right positioning point C1 'and the second right positioning point C2', and a third line segment (not labeled) passes through the second The left positioning point C2 and the second right positioning point C2 ', then the intersection point C between the first line segment and the second line segment and the third line segment are orthogonal to the origin O, thereby determining a two-dimensional coordinate, and According to the distance in the image, the coordinates of the first left anchor point C1 are (-X1, Y1), the coordinates of the second left anchor point C2 are (-X2, 0), and the coordinates of the first right anchor point C1 'are (X1). , Y1), the coordinate of the second right-side anchor point C2 'is (X2, 0).
如此，可得第一線段及第二線段的斜率M1及M2的絕對值為如下式(1)：M1=M2=|Y1/(X2-X1)| (1)。 In this way, the absolute values of the slopes M1 and M2 of the first line segment and the second line segment can be obtained as the following formula (1): M1 = M2 = | Y1 / (X2-X1) | (1).
因此，可將此上述的M1定為預設值。 Therefore, the above-mentioned M1 can be set as a preset value.
而如第5B圖所示，若遇到彎道時，則第一左側定位點C1的座標為(-X3，Y2)，第二左側定位點C2的座標為(-X4，0)，第一右側定位點C1'的座標為(X5，Y2)，第二右側定位點C2'的座標為(X6，0)，故可得第一線段及第二線段的斜率M1'及M2'的絕對值為如下式(2)、(3)：M1'=|Y2/(X4-X3)| (2)；M2'=|Y2/(X6-X5)| (3)。 As shown in Figure 5B, if a curve is encountered, the coordinates of the first left positioning point C1 is (-X3, Y2), and the coordinates of the second left positioning point C2 is (-X4, 0). The coordinates of the right positioning point C1 'are (X5, Y2), and the coordinates of the second right positioning point C2' are (X6, 0), so the absolute values of the slopes M1 'and M2' of the first and second line segments can be obtained. The values are as follows (2), (3): M1 '= | Y2 / (X4-X3) | (2); M2' = | Y2 / (X6-X5) | (3).
是以，當斜率M1'大於斜率M1時或斜率M2'大於斜率M1時，表示轉彎資訊大於預設值，載具系統100即將進入彎道，因此可調整無線發射裝置P1、P2、P3、P4的發射頻率以加快比對速度。其中斜率M1'大於斜率M1時表示即將左轉，斜率M2'大於斜率M1時表示即將右轉。 Therefore, when the slope M1 'is larger than the slope M1 or the slope M2' is larger than the slope M1, it means that the turning information is greater than a preset value, and the vehicle system 100 is about to enter a curve, so the wireless transmitting devices P1, P2, P3, and P4 can be adjusted. The transmission frequency to speed up the comparison. Where the slope M1 'is greater than the slope M1, it means that it will turn left, and the slope M2' is greater than the slope M1, it means that it will turn right.
在另一實施例中，處理器110可用其他方式判定是否有彎道。第5C圖顯示另一種彎道的判定方式，此時可將影像左下角訂為二維座標原點O，並取得第一左側定位點C1的座標為(X7，Y7)，第二左側定位點C2的座標為(X8，Y8)，第一右側定位點C1'的座標為(X9，Y9)，第二右側定位點C2'的座標為 (X10，Y10)，故可得第一線段及第二線段的斜率M1'及M2'的絕對值為如下式(5)、(6)：M1"=|(Y8-Y7)/(X8-X7)| (5)；M2"=|(Y10-Y9)/(X10-X9)/| (6)。 In another embodiment, the processor 110 may determine whether there is a curve in other ways. Figure 5C shows another way to determine the curve. At this time, the lower left corner of the image can be set to the two-dimensional coordinate origin O, and the coordinates of the first left positioning point C1 are (X7, Y7), and the second left positioning point The coordinates of C2 are (X8, Y8), the coordinates of the first right positioning point C1 'are (X9, Y9), and the coordinates of the second right positioning point C2' are (X10, Y10), so the absolute values of the slopes M1 'and M2' of the first line segment and the second line segment can be obtained as follows (5) and (6): M1 "= | (Y8-Y7) / (X8 -X7) | (5); M2 "= | (Y10-Y9) / (X10-X9) / | (6).
是以，若斜率M1"大於斜率M2"，表示載具系統100即將進入左轉；若斜率M1"等於斜率M2"，表示載具系統100直行；若斜率M1"小於斜率M2"，表示載具系統100即將進入右轉，故可由此轉彎資訊判定載具系統100是否即將進入彎道。 Therefore, if the slope M1 "is greater than the slope M2", it means that the vehicle system 100 is about to enter a left turn; if the slope M1 "is equal to the slope M2", it means that the vehicle system 100 is going straight; if the slope M1 "is smaller than the slope M2", it means that the vehicle The system 100 is about to enter a right turn, so the turn information can be used to determine whether the vehicle system 100 is about to enter a curve.
雖然本發明已以實施例揭露如上，然其並非用以限定本發明，任何熟習此技藝者，在不脫離本發明之精神和範圍內，當可作各種之更動與潤飾，因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。 Although the present invention has been disclosed as above by way of example, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and retouches without departing from the spirit and scope of the present invention. Therefore, the protection of the present invention The scope shall be determined by the scope of the attached patent application.
200‧‧‧輪胎與無線發射裝置的配對方法 200‧‧‧ Tyre and wireless transmitting device pairing method
210、220、230‧‧‧步驟 210, 220, 230‧‧‧ steps
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| US6448892B1 (en) * | 1999-09-03 | 2002-09-10 | Sagem Sa | Receiver for monitoring vehicle tire pressure and associated transmitter for remote control of other elements of the vehicle |
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| CN105059064A (en) * | 2015-07-27 | 2015-11-18 | 深圳市云图电装***有限公司 | Method and system for matching signals in tyre pressure monitoring system |
| CN103496412B (en) * | 2013-09-18 | 2016-04-06 | 深圳市加力尔电子科技有限公司 | TPMS tire pair system and matching method thereof |
| TW201636230A (en) * | 2015-04-08 | 2016-10-16 | Cub Elecparts Inc | Usage setting method of Bluetooth tire pressure monitoring system |
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| US6448892B1 (en) * | 1999-09-03 | 2002-09-10 | Sagem Sa | Receiver for monitoring vehicle tire pressure and associated transmitter for remote control of other elements of the vehicle |
| CN103895459A (en) * | 2012-12-27 | 2014-07-02 | 株式会社东海理化电机制作所 | Tire position determination system and tire pressure monitoring system |
| CN103434349A (en) * | 2013-08-23 | 2013-12-11 | 惠州华阳通用电子有限公司 | Tire pressure monitoring system and automatic pairing method and device thereof |
| CN103496412B (en) * | 2013-09-18 | 2016-04-06 | 深圳市加力尔电子科技有限公司 | TPMS tire pair system and matching method thereof |
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