TWI600562B - BLE vehicle anti-theft and cloud information management system - Google Patents

Description

BLE vehicle anti-theft and cloud information management system

The invention relates to a low-power Bluetooth beacon for use in vehicle anti-theft, and provides a system with high security mechanism for vehicle anti-theft, which is a solution with high precision, high reliability, low power and low cost, and It is an invention that is extremely practical, and it does prevent the vehicle from being used for the purpose and effect of theft.

The car is a traffic vehicle that can carry the happiness of the entire family. The maintenance and care are extremely important steps. Therefore, it is of great importance to the purchase of the car-related safety assembly. It is afraid of damage to a certain part. Or fall off and cause danger of driving; not only that, because of the large amount of money spent on maintenance and care, it is even more afraid of the loss of the vehicle and theft. For this reason, many car owners will work hard on the anti-theft measures of the vehicle, such as using a telescopic anti-theft lock to hold the steering wheel to prevent the thief from driving away, or installing anti-theft sensors on the door, when the thief wants to open the door. Immediately emit a siren to achieve the effect of intimidation, through a variety of anti-theft methods to achieve the purpose of anti-theft.

Please refer to the Republic of China Patent Bulletin No. M386209 "Steering Wheel Column Lock", which includes a lock seat and a lock bolt. The lock base is fixed on the steering wheel column. The lock base has a first body and a second body. The first body and the second body are clamped on the steering wheel column, and the first body is recessed away from one side of the second body. Forming a first recessed portion, and forming a through hole communicating with the first recessed portion, and forming a recessed hole at the first recessed portion, the recessed hole being adjacent to the through hole and Vertical to each other. The lock bolt is coupled to the lock seat, the lock bolt has a rod body portion and a head portion, and the head portion radially protrudes from the elastic lock column, and the rod body portion is inserted through the through hole of the first body of the lock seat, and the head portion is accommodated in the first a first recess of the body, and the locking post protrudes into the recess of the first body. The lock seat is fixed on the steering wheel column and the lock bolt is combined with the design of the lock seat, so that the steering wheel is not easy to rotate, and the anti-theft function is achieved, and the utility model has the advantages of small size, simple locking procedure, and easy collection after being removed. advantage. This patent is the above-mentioned commonly used anti-theft column lock, although it has the function of anti-theft, but in this ever-changing generation of technology, the thief's stealing method will also follow, so the old-style anti-theft device for today's thieves It is impossible to achieve effective anti-theft purposes.

In addition, due to the advancement of technology, the application of wireless detection is also gradually used in vehicles. Please refer to the Republic of China Patent Bulletin No. M483209 "Vehicle Anti-theft Device", which mainly has a body, and a control circuit is provided in the body. The circuit connects a plurality of sensing components and photographic components, and the control circuit is connected to a voice module and a wireless communication module. Each sensing component is installed in a door or other position of the vehicle, and each photographic component is installed in a hidden position inside the vehicle, and when the thief is invaded, the sensing module is activated to activate the voice module. The audible warning sounds to deter thieves, and the photographic components transmit the images to the user's mobile communication device via the control circuit. The user stores the images with the mobile communication device to achieve the vehicle burglary and theft report and tracking association. The basis. This patent is based on the prosperity of today's wireless technology. Although the owner can transmit the relevant images in the vehicle to the mobile device through the cooperation of the mobile device and the photographic components, the report will be provided after the theft. Looking for, but the use of multiple photographic components not only causes an increase in the overall installation cost, but also the photographic components are more easily detected and destroyed by thieves, resulting in the inability to perform anti-theft measures. According to the description of the two patents listed above, it is obvious whether the traditional column lock or the current wireless anti-theft There are specific deletions in the way.

In view of the above situation, the inventors invested a lot of time to research relevant knowledge, and compared various advantages and disadvantages, research and development of related products, and many experiments and tests, and finally launched a "BLE vehicle anti-theft and cloud information The management system improves the above-mentioned shortcomings to meet the needs of the public.

The main technical feature of the present invention is to provide accurate management of vehicle anti-theft, and to achieve effective anti-theft management in a low-power and low-cost manner, and to reduce the size and lightness of the design, greatly reducing the conventional technology. The column lock or the missing space occupied by the camera element. In order to clearly achieve the above-mentioned purpose and effect, the present invention relates to a BLE vehicle anti-theft and cloud information management system, which is installed in a vehicle and has the functions of anti-theft and tracking, and includes: a terminal machine having a receiving unit and a data inventory And a detecting component is wirelessly coupled to the terminal device and disposed at any position inside the vehicle, the detecting component includes a circuit board and a power kit, and the circuit board is electrically connected to the power kit, and the The circuit board is further electrically mounted with a sensor and a Bluetooth low-power chip, which senses a change in the shape of the vehicle and a change in position and generates a message data to be transmitted to the Bluetooth low-power chip. And the Bluetooth low-power chip has a receiving unit of the transmitting unit wireless connection terminal, wherein the sending unit sends the message data to the receiving unit of the terminal to receive, and further accesses the data inventory unit; wherein The vehicle detects through the sensor whether the vehicle changes in any part of the vehicle body, transmits the message data to the terminal for access, and the vehicle owner transmits the terminal through the terminal. You can stay with the vehicle condition and achieve any theft, and to set the Bluetooth link to the terminal so as to achieve low power consumption of the wafer to reduce power consumption, low cost, and enhance the effectiveness of the object in the linkage.

A further technical feature of the present invention is that the sensor in the circuit board further has a gravity sensing unit, a vibration sensing unit, a tilt sensing unit, a three-dimensional angular velocity sensing unit and a displacement sensing unit. The gravity sensing unit detects the change of gravity between the vehicle and the center of the earth, and the vibration sensing unit detects the vibration generated by the impact of the vehicle, and the tilt sensing unit detects the ground relative to the ground after the impact of the vehicle. The angle changes, and the three-dimensional angular velocity sensing unit detects the change of the angle and direction of the vehicle after being moved and impacted, and the displacement sensing unit detects the displacement change of the vehicle after being impacted and stolen.

A further technical feature of the present invention is that the sensor further has a signaling alert unit further connected to a global positioning system and a global mobile communication system, and the signaling alert unit is based on the gravity sensing unit and the vibration sensing device. The sensing of the unit, the tilt sensing unit, the three-dimensional angular velocity sensing unit and the displacement sensing unit transmits information to the global positioning system and the global mobile communication system, and the GPS position is locked by the global positioning system, and the global mobile communication system is used for transmission. The information is received by the terminal.

A further technical feature of the present invention is that the power kit of the detecting component further includes a main power source and a backup power source, wherein the main power source and the backup power source are electrically connected to the vehicle power source, and the main power source provides power driving detection. When the main power supply is damaged, short-circuited and disconnected by external force, the circuit board controls the operation of the standby power supply and continues to drive the operation of the detecting component.

A further technical feature of the present invention is that a sensor unit is further built in the sensor in the circuit board of the detecting component, and the recording unit records the gravity sensing unit, the vibration sensing unit, and the tilt sensing in the sensor. Any change of the vehicle detected by the unit, the three-dimensional angular velocity sensing unit and the displacement sensing unit generates a record data, and another analysis is provided in the terminal The unit data is wirelessly transmitted to the receiving unit in the terminal by the transmitting unit of the Bluetooth low-power chip, and then transmitted to the analyzing unit for analysis by the receiving unit.

A further technical feature of the present invention is that the terminal system can be a smart phone, a cloud or a computer.

A further technical feature of the present invention is that a soft rubber board is further adhered to one side of the circuit board, and the area of one side of the flexible plastic board is greater than the area of the circuit board; and the circuit board and the power kit The electrical connection between the two is connected by a flexible cable.

According to the technical features described above for the present invention, the advantage is that the owner attaches the detecting component to any place in the vehicle through the setting of the soft rubber board, such as a window, a door, a car body, and the like. Detecting the vehicle by using sensors in the circuit board, and changing the vehicle by various sensing units, such as being subjected to impact, the door is opened, the window is broken, and the vehicle body is stolen and displaced. Each sensing unit in the detector can be detected and formed into a message data, and wirelessly transmitted to the terminal device according to the characteristics of the Bluetooth low-power chip, thereby providing the vehicle owner with the terminal device to know the condition of the vehicle. And reduce the power consumption of the power kit, and then use the signaling alert unit to link to the global positioning system and the global mobile communication system for tracking and positioning. This makes it easy for the owner and the police to quickly retrieve the vehicle. Provides clarification of the occurrence of many problems. Therefore, the present invention can be said to be a practical and progressive invention, which is quite worthy of promotion by the industry and is publicized to the public.

(10) ‧ ‧ vehicles

(1)‧‧‧ Terminals

(11)‧‧‧ Receiving unit

(12) ‧‧‧data stock unit

(13)‧‧‧Analysis unit

(14)‧‧‧Soft rubber sheet

(2) ‧ ‧ Detecting parts

(21)‧‧‧ boards

(22)‧‧‧Power Kit

(221)‧‧‧Main power supply

(222)‧‧‧Reserved power supply

(3)‧‧‧ Sensors

(31)‧‧‧Gravity sensing unit

(32)‧‧‧Vibration sensing unit

(33)‧‧‧ tilt sensing unit

(34)‧‧‧Three-dimensional angular velocity sensing unit

(35) ‧‧‧ Displacement Sensing Unit

(36)‧‧‧Signal warning unit

(37)‧‧‧record unit

(4) ‧‧‧Blue Low Power Wafer

(5) ‧‧‧Information materials

(6) ‧‧‧Send unit

(7) ‧‧‧Global Positioning System

(8) ‧‧‧Global System for Mobile Communications

(9) ‧ ‧ record data

The first figure is a block diagram of the present invention.

The second figure shows that the present invention is installed in a window, and when the window is broken, an alert is issued and the message is transmitted to the end. Schematic diagram of the state of the terminal.

The third figure is a schematic diagram of the state in which the present invention is installed on a vehicle door, and when the door is opened, an alarm is issued and a message is transmitted to the terminal.

The fourth figure is a usage state diagram in which the terminal device receives a message and is positioned when the vehicle body is mounted on the vehicle body and the vehicle body is displaced by theft.

In order to clearly illustrate the above objects and effects of the present invention, the features and effects of the present invention will be described in detail with reference to the accompanying drawings. Referring to the first to fourth figures, the BLE vehicle anti-theft and cloud information management system is installed in the vehicle (10) and wirelessly connected to the owner, thereby having the functions of anti-theft and tracking, including: a terminal (1) having a receiving unit (11) and a data inventory unit (12); and a detecting component (2) wirelessly coupled to the terminal (1), mounted in the vehicle (10) In any position, the detecting component (2) comprises a circuit board (21) and a power package (22), the circuit board (21) is electrically connected to the power package (22), and the circuit board (21) Further electrically mounted with a sensor (3) and a Bluetooth low-power chip (4), the sensor (3) senses a change in the shape of the vehicle (10) and a change in position and generates a The message data (5) is transmitted to the Bluetooth low-power chip (4), and the Bluetooth low-power chip (4) has a transmitting unit (6) receiving unit (1) of the wireless connection terminal (1). The sending unit (6) sends the message data (5) to the receiving unit (11) of the terminal (1) for receiving, and further accesses the data inventory unit (12); wherein the vehicle (10) has a sense of transmission Measurement (3) The detecting vehicle (10) transmits the message data (5) to the terminal (1) for access regardless of any change in the vehicle body, whereby the vehicle owner can grasp the vehicle at any time through the terminal (1) (10) Any situation and anti-theft, and the terminal (1) is connected with the setting of the Bluetooth low-power chip (4) to achieve the reduction Low power consumption, low cost and enhanced connectivity and purpose.

The foregoing is a main technical feature of the main embodiment of the present invention, which corresponds to the content of the first item of the patent application scope of the present application, and the object and the implementation form of the present invention are known in detail, and the technical features described in the remaining subsidiary patent scopes are The detailed description or additional technical features of the first content of the patent application scope, and not to limit the scope of the first paragraph of the patent application scope, it should be noted that the first item of the patent application scope of the present application does not necessarily include the scope of the remaining subsidiary patents. Technical characteristics.

According to the foregoing description, the detecting component (2) is installed in the vehicle (10) and wirelessly connected with the terminal (1), and the vehicle (10) is subjected to theft, breaking, internal theft, impact, and handling by the thief. When the vehicle (10) is subjected to impact or changes the position at the time of parking, the circuit board (21) of the detecting member (2) located in the vehicle is detected by the sensor (3) regardless of the vehicle. (10) When the body changes, it will detect and generate the message data (5). The message data (5) will be transmitted to the terminal (1) through the Bluetooth low-power chip (4) for receiving and storing. The owner can also know the occurrence of the vehicle and quickly dispose of it, alarm, etc. at the terminal (1), thereby reducing the probability of the vehicle (10) being lost, the vehicle (10) being damaged too much, and the loss of assets in the vehicle (10). Such problems occur to ensure the integrity of the vehicle (10) and the safety of the owner's assets.

Continuing to describe the features of the present invention, the sensor (3) in the circuit board (21) is arranged to sense the change in the shape and position of the vehicle (10), and this prevents the vehicle (10) from being stolen. And lost, so the sensor (3) further has a gravity sensing unit (31), a vibration sensing unit (32), a tilt sensing unit (33), and a three-dimensional angular velocity sensing unit (34). And a displacement sensing unit (35), and the various sensing units have corresponding functions, wherein the gravity sensing unit (31) senses whether the vehicle (10) is subjected to stealing by a thief or is knocked over to leave On the ground, through the change of gravity of the vehicle (10) To achieve the purpose of detection; the vibration sensing unit (32) detects the abnormality of the vibration generated by the vehicle (10) to determine whether a thief is inside or suffers an impact; the tilt sensing unit (33) transmits The vehicle (10) is detected from a normal horizontal state to a tilted state, thereby determining whether the vehicle (10) is stolen and knocked; the three-dimensional angular velocity sensing unit (34) is for sensing the vehicle (10) Whether the speed and direction of the vehicle (10) is changing after being stolen by the thief; the displacement sensing unit (35) is a directional vector for sensing the change of the vehicle (10) from the initial position to another position. Integrating the built-in of the various sensing units described above, it does detect many changes in the body of the vehicle (10), and protects the vehicle (10) in the most complete and reliable manner, regardless of whether the vehicle (10) is stolen by a thief or accident. The collision, destruction, etc., the use of the sensor (3) in the detection component (2) can accurately provide the owner with accurate information, so that the owner can handle the problem in time to avoid the damage continues to expand and cause the failure Recover, see the first picture, and The second, third and fourth figures are for reference.

When the vehicle (10) is subjected to theft, accidental impact, destruction, etc. of the thief, in addition to immediately transmitting the message material (5) to the terminal (1) to the owner, in order to be able to effectively trace, the sensor ( 3) Further, a signaling alert unit (36) is built in, and the signaling alert unit (36) is wirelessly connected with a global positioning system (7) and a global mobile communication system (8), in other words, a vehicle (10). When subjected to any condition, the sensor (3) will measure the gravity sensing unit (31), the vibration sensing unit (32), the tilt sensing unit (33), the three-dimensional angular velocity sensing unit (34), and the displacement sensing. The results detected by unit (35) are integrated to form message data (5), and the vehicle (10) is located through the global positioning system (7), and the message is transmitted to the network through the global mobile communication system (8). The message unit (5) is transmitted to the receiving unit (11) of the terminal (1) by the transmitting unit (6) in the Bluetooth low-power chip (4), so that the owner can know at hand, so that the owner can Information and network The information placed on the alarm is used to facilitate the police to quickly track, locate, search and recover, to avoid excessive damage to the vehicle (10), or even to resell, etc., please refer to the first figure, and The fourth figure is taken as a reference.

Generally, thieves who want to steal the vehicle (10), in order to avoid attracting the attention of others, most of them will first remove and destroy the power supply that provides the alarm sound in the vehicle (10), and then cancel the alarm system originally on the vehicle (10). To prevent the occurrence of theft, the present invention includes a main power supply (221) and a backup power supply (222) in the design of the power package (22), wherein the main power supply (221) and the vehicle (10) The onboard power supply is electrically connected, and further provides the power operation of the detecting component (2). When the vehicle power source or the main power source (221) on the vehicle (10) is searched and cut off by the thief, the circuit board (21) Further, the backup power supply (222) is activated to operate and drive the operation of the detecting component (2), so that the thief does not interrupt the vehicle power supply or the main power supply (221) when the thief is stealing. The anti-theft function, through the setting of the backup power supply (222), can continue to provide the detection component (2) operation and continue to provide relevant information to the owner, as shown in the first figure.

In addition, the present invention can accurately determine the problem of the vehicle (10) when it is investigated in the future, so that the sensor in the circuit board (21) of the detecting member (2) (3) Further, there is built in a recording unit (37), which further records the gravity sensing unit (31), the vibration sensing unit (32), the tilt sensing unit (33), and the three-dimensional angular velocity sensing unit (34). The formed data generates a record data (9), and an analysis unit (13) is additionally provided in the terminal (1), and the analysis unit (13) mainly analyzes the record data (9), and the The record data (9) formed by the recording unit (37) is transmitted to the receiving unit (11) by the transmitting unit (6) of the Bluetooth low-power chip (4), and the receiving unit (11) is further transmitted to the analyzing unit. (13) analysis, and the recording unit (37) The recorded data (9) can also be transmitted to the Internet by wireless transmission system (8), so that the police can conduct the most accurate investigation in future investigation and responsibility clarification. Please refer to the first figure; and the application of the terminal in the terminal (1) can be a smart phone, a cloud or a computer, and the setting described by the terminal (1) is convenient for the vehicle owner to surely protect the vehicle (10). ), while the aforementioned smart phones, clouds, and computers mainly provide the owner with the ability to view and facilitate data access, and can also apply smart phones, clouds, and computers to each other (not shown); It can be installed on the vehicle (10). Therefore, a soft rubber plate (14) is additionally adhered to one side of the circuit board (21), and the soft rubber plate (14) is adhered to one of the inherent circuit boards (21). The area of the side is larger than the area of the circuit board (21), and the connection between the circuit board (21) and the power package (22) is mainly a flexible cable, so the owner can stick the circuit through the soft rubber board (14). One side of the plate (21) is adhered to any part of the vehicle (10), and the soft rubber plate (14) has a light characteristic. Thin, short, and small, it does not occupy too much space in the vehicle (10), please refer to the first figure.

Summarizing the above-mentioned technical features described in the present invention, when the vehicle owner mounts the detecting member (2) on the vehicle (10), the feeling of the circuit board (21) on the detecting member (2) is set. The detector (3) is disposed by each sensing unit (gravity sensing unit (31), vibration sensing unit (32), tilt sensing unit (33), three-dimensional angular velocity sensing in the sensor (3) The built-in unit (34) and the displacement sensing unit (35) accurately sense the vehicle (10) whether it is in the shape change (impact, damage) or is subjected to handling, moving, dumping, etc., so that the owner can grasp the vehicle. In the case of (10), not only that, but also the location of the vehicle (10) can be recorded, tracked, and located by the setting of the recording unit (37) and the signaling alert unit (36), so that the police can find and consult the police, which is greatly shortened. When the vehicle (10) is retrieved, the vehicle (10) is prevented from being damaged, bought, disassembled, etc., and the low-power, low-cost, low-power, low-power, low-power, low-power, High-speed connection, less data transfer time The utility model has the advantages that the low-power radio frequency effectively saves the working time and the like, and the utility model is different from the conventional anti-theft system in terms of complexity and high cost. The invention is more in line with the needs of the public than the prior art, and is also more suitable. Progressive.

The above is only a preferred embodiment for explaining the present invention, and is not intended to limit the invention in any way, so that any modifications relating to the present invention are made in the spirit of the same invention. And the changer, other types that can be implemented and have the same effect, should still be included in the scope of the intention of the present invention.

In summary, the "BLE vehicle anti-theft and cloud information management system" of the present invention is truly in line with the development of the industry in terms of practicality and cost-effectiveness, and the disclosed structural invention has an unprecedented innovative structure. Therefore, its "novelty" should be undoubtedly considered, and the invention can be more effective than the conventional structure, and therefore has "progressiveness", which fully complies with the requirements of the application requirements of the invention patents of the Chinese Patent Law. File a patent application and ask the bureau to review it early and give it affirmation.

(10) ‧ ‧ vehicles

(1)‧‧‧ Terminals

(11)‧‧‧ Receiving unit

(12) ‧‧‧data stock unit

(13)‧‧‧Analysis unit

(14)‧‧‧Soft rubber sheet

(2) ‧ ‧ Detecting parts

(21)‧‧‧ boards

(22)‧‧‧Power Kit

(221)‧‧‧Main power supply

(222)‧‧‧Reserved power supply

(3)‧‧‧ Sensors

(31)‧‧‧Gravity sensing unit

(32)‧‧‧Vibration sensing unit

(33)‧‧‧ tilt sensing unit

(34)‧‧‧Three-dimensional angular velocity sensing unit

(35) ‧‧‧ Displacement Sensing Unit

(36)‧‧‧Signal warning unit

(37)‧‧‧record unit

(4) ‧‧‧Blue Low Power Wafer

(5) ‧‧‧Information materials

(6) ‧‧‧Send unit

(7) ‧‧‧Global Positioning System

(8) ‧‧‧Global System for Mobile Communications

(9) ‧ ‧ record data

Claims (6)

The utility model relates to a BLE vehicle anti-theft and cloud information management system, which is installed in a vehicle and has the functions of anti-theft and tracking. The utility model comprises: a terminal device having a receiving unit and a data inventory unit; and a detecting component wirelessly connected to the terminal The device is mounted at any position inside the vehicle. The detecting component includes a circuit board and a power package. The circuit board is electrically connected to the power kit, and the circuit board is further electrically mounted with a sensor and A Bluetooth low-power chip that senses changes in the shape of the vehicle and changes in position and generates a message to be transmitted to the Bluetooth low-power chip, and the Bluetooth low-power chip is built in a receiving unit wirelessly connects the receiving unit of the terminal, the sending unit sends the message data to the receiving unit of the terminal to receive, and further accesses the reagent stock unit; the sensor in the circuit board further has a built-in a gravity sensing unit, a vibration sensing unit, a tilt sensing unit, a three-dimensional angular velocity sensing unit and a displacement sensing unit, wherein the gravity sensing unit detects the vehicle The gravity sensing unit detects the vibration generated by the impact of the vehicle, and the tilt sensing unit detects the angle change of the vehicle relative to the ground after the impact, and the three-dimensional angular velocity sensing unit The detection of the angle and direction of the vehicle after being moved and impacted, and the displacement sensing unit is for detecting the displacement change of the vehicle after being impacted or stolen; wherein the vehicle detects the vehicle through the sensor After any change occurs in the vehicle body, the message data is transmitted to the terminal for access, so that the owner can grasp any condition of the vehicle and achieve anti-theft through the terminal, and connect with the blue low-power chip. The terminal further achieves the efficacy and purpose of reducing power consumption, low cost, and enhancing the range of connections. BLE vehicle anti-theft and cloud information management system according to the first application of patent scope The sensor further includes a signaling alert unit further wirelessly coupled to a global positioning system and a global mobile communication system, and the signaling alert unit is based on the gravity sensing unit, the vibration sensing unit, and the sense of tilt. Sensing of the measuring unit, the three-dimensional angular velocity sensing unit and the displacement sensing unit transmits information to the global positioning system and the global mobile communication system, and the GPS position is locked by the global positioning system, and the information is transmitted to the terminal by using the global mobile communication system. Receive it. The BLE vehicle anti-theft and cloud information management system according to claim 1, wherein the power kit of the detecting component further comprises a main power source and a backup power source, wherein the main power source and the backup power source are electrically connected to the vehicle power source. Sexual connection, and the main power supply provides the operation of the electric drive detecting component, and when the main power source is damaged by external force, short circuit and open circuit, the circuit board controls the operation of the standby power supply and continues to drive the detecting component. According to the BLE vehicle anti-theft and cloud information management system described in claim 2, the sensor in the circuit board of the detecting component further has a recording unit built therein, and the recording unit is recorded in the sensor. The gravity sensing unit, the vibration sensing unit, the tilt sensing unit, the three-dimensional angular velocity sensing unit, and the displacement sensing unit detect any change of the vehicle and generate a record data, and another analysis unit is further disposed in the terminal. The record data is wirelessly transmitted to the receiving unit in the terminal device by the transmitting unit of the Bluetooth low-power chip, and then transmitted to the analyzing unit for analysis by the receiving unit. According to the BLE vehicle anti-theft and cloud information management system described in claim 1, wherein the terminal system can be a smart phone, a cloud or a computer. According to the BLE vehicle anti-theft and cloud information management system described in the first aspect of the patent, wherein a soft rubber plate is adhered to one side of the circuit board, and the soft rubber board is adhered to the inherent circuit board. The area on one side is larger than the area of the circuit board; and the electrical connection between the circuit board and the power package is connected by a flexible cable.