Helmet capable of improving wearing safety and control method

Abstract

The invention relates to a helmet capable of improving wearing safety and a control method.The helmet comprises a shell, a lining, a top sensor and a rear sensor, the top sensor is arranged on the top of the lining, and the rear sensor is arranged on the rear portion of the lining; a buckle is arranged on the outer wall of the shell, and a battery panel is installed in the buckle. The buckle is used in cooperation with an electric bicycle hook, a wireless charging module is arranged in the electric bicycle hook, and the handlebar speed regulator controls the output current of the bicycle-mounted battery through the current controller. The control method comprises the steps that the processor controls the current controller to regulate and control the output current of the vehicle-mounted battery of the electric bicycle according to pressure values detected by the top sensor and the rear sensor so as to control the rotating speed of the motor, and therefore the speed of the electric bicycle is controlled. According to the whole scheme, the technical cost is low, the functionality is good, the speed of the electric vehicle can be controlled in combination with the wearing state of the helmet, the safety of a rider is guaranteed, and high practicability and market popularization value are achieved.

Description

Technical Field

[0001] The invention relates to a helmet capable of improving wearing safety and a control method. Background Art

[0002] Whether the half helmet is worn in a standard manner has a great impact on the wearer's safety. If the half helmet is worn on the head without locking the buckle, or even if the buckle is locked but the helmet is not worn properly on the head, the helmet is easy to slip off the head if it is not worn in a standard manner, affecting the safety protection effect of the helmet and posing certain safety hazards.

[0003] There are also some half helmets that detect whether the helmet is worn properly by adding sensors, communication modules and other designs. For example, Chinese patent 202322364427.7 detects whether the helmet is in the wearing position by setting a capacitive detection module on the top of the head, but it cannot detect whether the helmet is worn properly, cannot detect the situation where the helmet is worn but the lock is not locked, and cannot detect whether the helmet is adjusted to fit the head; Chinese patents 202323063235.9 and 202323541391.1 detect whether the helmet is worn correctly by detecting whether the lock is fastened, but because the lock is fixed on the helmet's fixing belt, the fixing belt is responsible for fixing the helmet around the wearer's head, so the fixing belt is used frequently and is more easily damaged. The fixing belt is generally made of nylon and is also more prone to aging. Therefore, if the detection component is combined with the fixing belt, it will bring inconvenience to the replacement of the fixing belt and increase the replacement cost of the fixing belt. In addition, the fixing belt is generally thin, which is not convenient for setting the circuit of the sensor circuit, which is not conducive to aesthetics and wearing comfort. In addition, in fact, simply detecting whether the lock is locked does not mean that the helmet has been worn in a standard manner. For example, for convenience, the user locks the lock, while the length of the fixing strap is still loose. There is no need to open the lock each time you wear it, and you only need to put the helmet on your head to pass the test. In another case, the user is lazy and does not adjust the head circumference properly, resulting in a loose or small head circumference that can only accommodate a small part of the head. These situations can pass the detection method of the above patent, but in fact, they are not worn in a standard manner. Once an accident occurs, the helmet can easily slip off the head, which is not conducive to the personal safety of the user. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in order to overcome the above technical problems existing in wearing a half helmet, the present invention provides a helmet and a control method capable of improving wearing safety.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a helmet capable of improving wearing safety, comprising an outer shell and an inner lining, wherein the inner lining is located inside the outer shell, and further comprising a top sensor and a rear sensor, wherein the top sensor is arranged at the top of the inner lining, and the rear sensor is arranged at the rear of the inner lining, wherein the inner wall of the rear of the inner lining corresponds to the position of the back of the wearer's head, and the helmet has an adjustment structure at this position, such as an adjustment buckle or Velcro, etc., and the rear sensor is arranged at this position. When adjusted to a standard wearing state, the rear sensor fits the position of the back of the head to sense pressure, and the top sensor and the rear sensor are both thin film pressure sensors; the outer shell A buckle is provided on the outer wall, and a battery panel is installed in the buckle, and the battery panel supplies power to the processor, the top sensor and the rear sensor; the buckle is used in conjunction with the electric bicycle hook, and the electric bicycle hook is a slot-type hook with an opening at the upper end, the slot-type hook has a bottom surface, and a first side wall, a second side wall, a third side wall and a fourth side wall connected in sequence, the first side wall is fixed to the electric bicycle, and the second side wall and the fourth side wall are each provided with a groove that penetrates the opening at the upper end of the slot-type hook, the grooves on the second side wall and the fourth side wall can be combined with the third side wall to form a hook, which can be used as a hook when a helmet is not hung, so as to facilitate hanging bags or bags when riding. Article, the third side wall is provided with a first accommodating groove, the first accommodating groove is connected with the upper end opening of the slot-type hook, the buckle is T-shaped, the battery panel is arranged in the T-shaped transverse section, and the end of the T-shaped vertical section away from the transverse section is fixed to the shell; when the buckle is used in conjunction with the electric bicycle hook, the T-shaped transverse section abuts against the bottom surface of the slot-type hook, and the T-shaped transverse section can also abut against the bottom surface of the slot-type hook and the four side walls at the same time, that is, the T-shaped transverse section just matches the size and shape of the slot of the slot-type hook, the T-shaped transverse section is inserted into the slot-type hook, and the T-shaped vertical section extends out of the first accommodating groove, and a wireless charging module is provided in the first side wall. The wireless charging module is connected to the on-board battery of the electric bicycle through a wire; a current controller is provided between the on-board battery of the electric bicycle and the motor of the electric bicycle, and the handlebar speed regulator of the electric bicycle controls the output current of the on-board battery of the electric bicycle through the current controller. A wireless signal receiving module is provided in the electric bicycle, and a wireless signal output module and a processor are provided between the outer shell and the inner lining. The top sensor and the rear sensor are both connected to the processor signal, and the wireless signal receiving module receives the signal of the wireless signal output module. The processor and the current controller are connected to the signal through the wireless signal output module and the wireless signal receiving module.

[0006] The top sensor is arranged on the top inner wall of the lining, and the rear sensor is arranged on the rear inner wall of the lining. Both the top sensor and the rear sensor are thin film pressure sensors, which are in the form of thin sheets and can be installed inside the lining or on the inner wall of the lining. The difference is that the lining generally has a buffering and shock absorbing effect, and uses a material with a certain elasticity such as foam. If the thin film pressure sensor is installed inside the lining, the values ​​of A and B set in the subsequent control method need to consider the impact of the elasticity of the lining material on the pressure value. When installed on the inner wall of the lining, in order not to expose the sensor to the outside, a layer of lining cloth can be covered on the outside of the sensor.

[0007] A photovoltaic panel is installed on the top of the housing, and the battery panel in the buckle is electrically connected to the photovoltaic panel. The photovoltaic panel can realize photovoltaic power generation and charge the battery panel. The photovoltaic panel is set at the top of the head and can be irradiated with sunlight to the greatest extent.

[0008] The wireless signal output module and the wireless signal receiving module are a group of Bluetooth transceiver modules.

[0009] A second receiving groove is provided on the bottom surface of the groove-type hook, the first receiving groove is communicated with the second receiving groove, and the second receiving groove can leak water to prevent water accumulation on rainy days.

[0010] The outer shell is made of polycarbonate, and the inner lining is made of polystyrene foam. The outer shell of polycarbonate has high strength and good anti-collision effect, and the inner lining of polystyrene foam has high density and good shock absorption effect, which can effectively protect the wearer's head.

[0011] A control method for improving the wearing safety of a helmet, the steps of which are that a processor controls a current controller to adjust the output current of an onboard battery of an electric bicycle according to pressure values ​​detected by a top sensor and a rear sensor, so as to control the rotation speed of a motor of the electric bicycle, thereby controlling the speed of the electric bicycle:

[0012] a. When the pressure value detected by the top sensor is less than A and the pressure value detected by the rear sensor is less than B, the current controller controls the current input into the electric bicycle motor to be 0, and the electric bicycle motor cannot be started; this indicates that the rider is not wearing a helmet and the electric bicycle cannot be ridden.

[0013] b. When the pressure value detected by the top sensor is less than A and the pressure value of the rear sensor is greater than B, or when the pressure value detected by the top sensor is greater than or equal to A and the pressure value of the rear sensor is less than C, the current controller controls the current peak value input to the electric bicycle motor to reduce, thereby reducing the maximum value of the motor speed and the maximum vehicle speed. This indicates that the user is wearing a helmet but does not meet the standard wearing state, and the speed of the electric bicycle is limited instead of directly not allowing the electric bicycle to start, which ensures safety and is more humane.

[0014] c. When the pressure value detected by the top sensor is ≥A and the pressure value detected by the rear sensor is ≥C, the current controller does not limit the input current of the electric bicycle motor, and the maximum speed of the electric bicycle motor can reach the peak value, maintaining the original maximum speed of the electric bicycle; this means that the rider has tightened the helmet strap and locked the buckle, and the head circumference also fits the head, reaching the standard wearing state, and the current controller does not limit the electric bicycle motor.

[0015] Among them, A, B and C are all thresholds, that is, parameters set in advance, and the value of A is greater than the pressure value generated by the weight of the helmet. B is the pressure value between the back of the head and the helmet when the buckle is locked but the fixing strap is not tightened or the buckle is not locked, and the back of the head and the helmet just fit against each other. C is the pressure value between the back of the head and the helmet when the helmet is worn in the standard state, and C>B.

[0016] Preferably, the value of A is slightly greater than the pressure value generated by the weight of the helmet. When the fixing strap buckle of the helmet is locked but the fixing strap is not tightened or the buckle is not locked, the pressure value detected by the top sensor is actually the pressure value generated by the weight of the helmet. When the fixing strap is tightened and the buckle is locked, the pressure value between the top of the head and the helmet will be greater than the pressure value generated by the weight of the helmet.

[0017] When the pressure value detected by the top sensor is ≥A and the pressure value of the rear sensor is <B, or the pressure value detected by the top sensor is ≥A and the pressure value of the rear sensor is <C, the current controller makes the input current peak value of the electric bicycle motor 50% of the original peak value. For example, the original maximum speed of the electric bicycle can reach 30km / h, but after the restriction, the maximum speed of the electric bicycle can only reach 15km / h.

[0018] The handlebar speed regulator of the electric bicycle includes a power tube, and the electric bicycle adjusts the output current of the motor through the power tube. The current controller is connected to the power tube, and the current controller controls the power tube of the electric bicycle. A wireless signal receiving module is provided in the electric bicycle, and a wireless signal output module is provided in the helmet. Alternatively, a wireless sensor transceiver module can be provided inside the helmet and inside the electric bicycle. For example, a group of Bluetooth transceiver modules can be used to realize wireless signal transmission. The electric bicycle has its own microprocessor. After the microprocessor of the electric bicycle receives the wireless signal from the helmet processor, it controls the action of the electric bicycle motor according to the data transmitted by the signal. The principle of controlling the speed of the electric bicycle is: the electric bicycle speed regulating handlebar is connected to the handlebar speed regulator. Turning the speed regulating handlebar changes the magnetic field strength around the internal Hall element, thereby changing the output voltage of the Hall handlebar. This output voltage is input to the corresponding controller, and the controller performs PWM (pulse width modulation) pulse width modulation according to the size of this output voltage. PWM uses the digital output of the electric bicycle microprocessor to control the analog circuit. The controller controls the on and off ratio of the power tube according to the strength of the PWM signal, thereby controlling the size of the motor speed. When the speed control signal is weak, the power tube outputs a smaller current and the motor speed is relatively slow; on the contrary, when the speed control signal is strong, the current obtained by the motor increases and the speed increases. That is, the working principle of the handlebar speed regulator of the electric bicycle is to detect the strength of the output signal of the speed control signal through the microprocessor, and then convert this changing signal into a driving signal for driving the power tube through the controller, and the power tube provides corresponding current to the motor to operate. The present invention adds a current controller between the controller and the power tube of the electric bicycle, and the current controller changes the driving signal of the driving power tube according to the signal transmitted by the helmet processor. The helmet processor controls the current controller according to the pressure value detected by the top sensor and the rear sensor.

[0019] The beneficial effect of the present invention is that the helmet and control method of the present invention can improve the wearing safety, combine the pressure value between the top of the head and the top of the helmet, and the pressure value between the back of the head and the back of the helmet, judge whether the rider wears the helmet, and whether the helmet is worn in a standard manner, and control the speed of the electric bicycle according to the use status of the rider's helmet, so as to prevent the rider from riding the electric bicycle without wearing a helmet, and prevent the rider from driving the electric bicycle at high speed when the helmet is not worn in a standard manner, thereby ensuring the safety of the rider. The helmet of the present invention is provided with sensors at the top and the rear, thereby avoiding the installation and replacement problems caused by setting the detection sensing components on the fixing belt and the lock buckle. The battery used in the helmet is charged by using solar green energy and the energy storage of the electric bicycle itself, thereby improving the convenience of use. When the helmet is not in use, the helmet can be hung on the hook of the electric bicycle through the buckle, and the battery panel of the helmet can be wirelessly charged while being stored; the hook provided on the electric bicycle can also wirelessly charge the mobile phone, thereby improving the use experience, and the overall solution has low technical cost, good functionality, and high practicality and market promotion value. The method of the present invention can control the speed of the electric vehicle in combination with the wearing state of the helmet, thereby ensuring the safety of the rider. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 It is a structural schematic diagram of the middle section of the helmet of the present invention.

[0022] Figure 2 It is a schematic diagram of the top view of the buckle of the helmet of the present invention.

[0023] Figure 3 It is a schematic diagram of the top view of the electric bicycle hook of the present invention.

[0024] Figure 4 It is a side structural schematic diagram of the electric bicycle hook of the present invention.

[0025] Figure 5 It is a structural schematic diagram of the buckle of the present invention when used in conjunction with the hook of an electric bicycle.

[0026] Figure 6 yes Figure 5 A partial enlarged view of point A in the middle.

[0027] Figure 7 It is a control principle block diagram of the present invention.

[0028] In the figure, 1, outer shell, 2, lining, 3, top sensor, 4, rear sensor, 5, buckle, 5a, horizontal section, 5b, vertical section, 6, battery panel, 7, electric bicycle hook, 7a, bottom surface, 7b, first side wall, 7c, second side wall, 7d, third side wall, 7e, fourth side wall, 7f, groove, 7g, first accommodating groove, 7h, second accommodating groove, 8, wireless charging module, 9, photovoltaic panel, 10, fixing belt, 11, wire, 100, helmet, 200, electric bicycle, 201, speed control handle. DETAILED DESCRIPTION

[0029] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0030] like Figure 1 As shown, a helmet 100 of the present invention that can improve wearing safety includes an outer shell 1 and an inner liner 2, wherein the inner liner 2 is located inside the outer shell 1, and also includes a top sensor 3 and a rear sensor 4, wherein the top sensor 3 is arranged on the top of the inner liner 2, and the rear sensor 4 is arranged on the rear of the inner liner 2. The rear inner wall of the inner liner 2 corresponds to the position of the back of the wearer's head, and the helmet 100 has an adjustment structure at this position, such as an adjustment buckle or Velcro, and the rear sensor 4 is arranged at this position. When adjusted to the standard wearing state, the rear sensor 4 fits the position of the back of the head to sense pressure. The top sensor 3 and the rear sensor 4 are both thin film pressure sensors. Preferably, the top sensor 3 is arranged on the top inner wall of the inner liner 2, and the rear sensor 4 is arranged on the rear inner wall of the inner liner 2. The top sensor and the rear sensor are both thin film pressure sensors. The thin film pressure sensor is in the form of a thin sheet and can be installed inside the liner or on the inner wall of the liner. The difference is that the liner generally has a buffering and shock-absorbing effect and uses a material with a certain elasticity such as foam. If the thin film pressure sensor is installed inside the liner, the value of A and B in the subsequent control method needs to consider the effect of the elasticity of the lining material on the pressure value. When installed on the inner wall of the liner, in order to prevent the sensor from being exposed, a layer of lining cloth can be covered on the outside of the sensor.

[0031] A buckle 5 is provided on the outer wall of the housing 1 , and a battery board 6 is installed in the buckle 5 . The battery board 6 supplies power to the processor, the top sensor 3 and the rear sensor 4 .

[0032] The buckle 5 is used in conjunction with the electric bicycle hook 7. Figure 3As shown, the electric bicycle hook 7 is a slot-type hook with an opening at the upper end, and the slot-type hook has a bottom surface 7a, and a first side wall 7b, a second side wall 7c, a third side wall 7d and a fourth side wall 7e connected in sequence. The first side wall 7b is fixed to the electric bicycle 200, and the second side wall 7c and the fourth side wall 7e are both provided with a groove 7f that penetrates the upper end opening of the slot-type hook. Figure 4 As shown, the grooves 7f on the second side wall 7c and the fourth side wall 7e can be combined with the third side wall 7d to form a hook, which can be used as a hook when the helmet 100 is not hung, so as to facilitate the hanging of bags or other items when riding. The third side wall 7d is provided with a first receiving groove 7g, which is connected to the upper end opening of the groove hook.

[0033] like Figure 1-2 As shown, the buckle 5 is T-shaped, the battery panel 6 is arranged in the transverse section 5a of the T-shape, and the end of the vertical section 5b of the T-shape away from the transverse section 5a is fixed to the housing 1. Figure 2 This is a perspective of looking down through the transparent shield of the helmet 100, and the buckle 5 can be seen to be T-shaped. When the buckle 5 is used in conjunction with the hook 7 of the electric bicycle, the T-shaped transverse section 5a abuts against the bottom surface 7a of the slotted hook, that is, the T-shaped transverse section 5a is inserted into the slotted hook, and the T-shaped transverse section 5a can also abut against the bottom surface 7a of the slotted hook and the four side walls at the same time, that is, the T-shaped transverse section 5a exactly matches the size and shape of the slot of the slotted hook, and the T-shaped transverse section 5a is inserted into the slotted hook and fits against the five inner walls of the slotted hook. The T-shaped vertical section 5b extends from the first accommodating groove 7g, and a wireless charging module 8 is provided in the first side wall 7b. The wireless charging module 8 is connected to the on-board battery of the electric bicycle 200 via a wire 11. As shown Figure 5-6 As described above, when the helmet 100 is not in use, the helmet 100 can be hung on the hook 7 of the electric bicycle through the buckle 5, and the battery panel of the helmet 100 can be wirelessly charged while being stored. The storage and wireless charging are integrated, and the hook 7 set on the electric vehicle can also wirelessly charge the mobile phone.

[0034] like Figure 7 As shown, a current controller is provided between the onboard battery of the electric bicycle 200 and the motor of the electric bicycle 200, and the handlebar speed regulator of the electric bicycle 200 controls the output current of the onboard battery of the electric bicycle 200 through the current controller. A wireless signal receiving module is provided inside the electric bicycle 200, and a wireless signal output module and a processor are provided between the outer shell 1 and the inner lining 2. The top sensor 3 and the rear sensor 4 are both connected to the processor signal, and the wireless signal receiving module receives the signal of the wireless signal output module. The processor and the current controller are connected to the wireless signal output module and the wireless signal receiving module signal. The data of the top sensor 3 and the rear sensor 4 are sent to the processor after signal conversion, and the signal conversion module is also powered by the battery panel 6.

[0035] like Figure 1 As shown, a photovoltaic panel 9 is installed on the top of the housing 1, and the battery panel 6 in the buckle 5 is electrically connected to the photovoltaic panel 9. The photovoltaic panel 9 can realize photovoltaic power generation and charge the battery panel 6. The photovoltaic panel 9 is set at the top of the head and can be irradiated with sunlight to the greatest extent. In this way, the battery panel 6 can adopt two charging schemes: 1. Online charging is realized through the photovoltaic panel 9; 2. A wireless charging module 8 is set on the electric bicycle 200. When the helmet 100 is not in use, that is, when the helmet 100 is hung on the hook 7 of the electric bicycle through the buckle 5, the wireless charging module 8 in the hook 7 of the electric bicycle can realize wireless charging of the battery panel 6 in the buckle 5.

[0036] The wireless signal output module and the wireless signal receiving module are a group of Bluetooth transceiver modules.

[0037] The bottom surface 7a of the groove type hook is provided with a second receiving groove 7h, the first receiving groove 7g is communicated with the second receiving groove 7h, and the second receiving groove 7h can leak water to prevent water accumulation on rainy days.

[0038] The outer shell 1 is made of polycarbonate, and the inner lining 2 is made of polystyrene foam. The outer shell 1 made of polycarbonate has high strength and good anti-collision effect, and the inner lining 2 made of polystyrene foam has high density and good shock absorption effect, and can effectively protect the wearer's head.

[0039] A control method for a helmet 100 capable of improving wearing safety, the steps are that a processor controls a current controller to adjust the output current of an onboard battery of an electric bicycle 200 according to pressure values ​​detected by a top sensor 3 and a rear sensor 4, so as to control the rotation speed of a motor of the electric bicycle 200, thereby controlling the speed of the electric bicycle 200: when the helmet 100 is not worn, the motor of the electric bicycle 200 cannot be started; when the helmet 100 is worn but does not reach a standard wearing state, the speed of the motor of the electric bicycle 200 is limited; when the helmet 100 is worn in a standard wearing state, the current controller does not limit the motor of the electric bicycle 200, and the specific judgment method is as follows:

[0040] a. When the pressure value detected by the top sensor 3 is less than A and the pressure value detected by the rear sensor 4 is less than B, the current controller controls the current input into the motor of the electric bicycle 200 to be 0, and the motor of the electric bicycle 200 cannot be started; this indicates that the rider is not wearing the helmet 100, and the electric bicycle 200 cannot be ridden.

[0041] b. When the pressure value detected by the top sensor 3 is less than A, and the pressure value of the rear sensor 4 is greater than B, and when the pressure value detected by the top sensor 3 is greater than or equal to A, and the pressure value of the rear sensor 4 is less than C, the current controller controls the current peak value input to the motor of the electric bicycle 200 to reduce, thereby reducing the maximum value of the motor speed and the maximum vehicle speed; this indicates that the user is wearing a helmet 100 but does not meet the standard wearing state, and the speed of the electric bicycle 200 is limited instead of directly not allowing the electric bicycle 200 to start, which is more humane while ensuring safety. The user wearing a helmet 100 but not meeting the standard wearing state includes the following situations:

[0042] 1. The helmet 100 is only worn on the head, the head circumference of the helmet 100 is too large and does not fit the head, the fixing belt 10 is not tightened or the buckle of the fixing belt 10 is not locked. The head circumference of the helmet 100 is too large, which may be adjusted too large, and the head circumference can be adjusted to a smaller size. It may also be that the specifications of the helmet 100 are too large for the user, and the head circumference cannot fit the head no matter how it is adjusted. In this case, a smaller helmet needs to be replaced.

[0043] 2. The head circumference of the back of the helmet 100 is adjusted to fit the head, but the fixing strap 10 is not tightened or the buckle of the fixing strap 10 is not locked.

[0044] 3. The fixing strap 10 of the helmet 100 is tightened and the buckle is locked, but the head circumference of the helmet 100 is too small, so the top of the head cannot fit on the top of the helmet 100. The head circumference of the helmet 100 is too small, which may be due to the adjustment being too small, and the head circumference can be increased by adjusting it again. It may also be due to the specifications of the helmet 100 being too small for the user, and the top of the head cannot fit on the top of the helmet 100 no matter how it is adjusted. In this case, a larger helmet needs to be replaced.

[0045] The pressure value detected by the top sensor 3 is <A, and the pressure value detected by the rear sensor 4 is >B, corresponding to the above three situations.

[0046] 4. The fixing strap 10 of the helmet 100 is tightened and the buckle is locked, but the head circumference is not adjusted to fit the head. This situation corresponds to the pressure value detected by the top sensor 3 ≥ A and the pressure value of the rear sensor 4 < C.

[0047] c. When the pressure value detected by the top sensor 3 is ≥A and the pressure value detected by the rear sensor 4 is ≥C, the current controller does not limit the input current of the motor of the electric bicycle 200, and the maximum speed of the motor of the electric bicycle 200 can reach the peak value, maintaining the original maximum speed of the electric bicycle 200; this indicates that the rider has tightened the fixing strap 10 of the helmet 100 and locked the buckle, and the head circumference also fits the head, reaching the standard wearing state, and the current controller does not limit the motor of the electric bicycle 200.

[0048] Among them, A, B and C are all thresholds, and the value of A is greater than the pressure value generated by the weight of the helmet 100. B is the pressure value between the back of the head and the helmet 100 when the buckle is locked but the fixing belt 10 is not tightened or the buckle is not locked, and the back of the head and the helmet 100 just fit together and abut against each other. C is the pressure value between the back of the head and the helmet 100 when the helmet is worn in a standard state, and C>B.

[0049] The present invention uses two values, B and C, for the reference threshold of the rear sensor 4, which can distinguish the situation of not wearing a helmet in accordance with the standard from the situation of not wearing a helmet. Only when the pressure value detected by the top sensor 3 meets the requirement, the threshold C will be used for comparison, otherwise the threshold B will be used as a reference, that is, the selection of the pressure reference value of the rear sensor 4 is affected by the value of the top sensor 3. If the user locks the buckle but does not tighten the fixing belt 10 or does not lock the buckle, but the back of the head reaches the standard fit and abutment state, the pressure value detected by the rear sensor 4 is greater than B and less than C. If only the reference threshold C is used, it will cause a misjudgment, and the result of the detection is that the helmet is not worn. If only the reference threshold value B is used, there may be misjudgment, that is, when the head circumference does not completely fit the head, after the fixing belt 10 is tightened and the buckle is locked, the pressure value detected by the rear sensor 4 will be larger than before the fixing belt 10 is adjusted, that is, when the pressure value detected by the top sensor 3 is ≥A, B≤the pressure value of the rear sensor 4<C, the standard wearing state is not actually reached, and the speed limit should be imposed on the electric bicycle, and it will be mistakenly judged that the standard wearing state has been reached.

[0050] The standard helmet wearing state is that the top of the head fits against the top of the helmet 100, the back of the head fits against the back of the helmet 100, the fixing strap 10 is tightened and the buckle is locked, and the buckle fits against the chin. The value when the above parts fit against each other is the critical value, and the values ​​of A and C can take the critical value or a value slightly larger than the critical value. Specifically, when the top of the head fits against the top of the helmet 100, the back of the head fits against the back of the helmet 100, the fixing strap 10 is tightened and the buckle is locked, and the buckle fits against the chin, A takes the pressure value of the top of the head and the top of the helmet 100 at this time, and C takes the pressure value of the back of the head and the back of the helmet 100 at this time. In the standard helmet wearing state, after the fixing strap 10 is tightened and the buckle is locked, the pressure value between the top of the head and the top of the helmet 100 will increase due to the locking effect of the fixing strap 10, while the pressure value detected by the top sensor 3 when the buckle of the fixing strap 10 is not buckled is actually the pressure value generated by the weight of the helmet 100. Therefore, the value of A should be greater than the pressure value generated by the weight of the helmet 100. In this way, the comparison between the detection value of the top sensor 3 and A can determine whether the buckle of the fixing strap 10 is buckled.

[0051] When the buckle is locked but the fixing belt 10 is not tightened or the buckle is not locked, if the head circumference of the helmet 100 has been adjusted so that the back of the head fits against the rear of the helmet 100, the rear sensor 4 can detect a pressure value, which is the value of B.

[0052] In the standard wearing state, that is, the head circumference of the helmet 100 is adjusted so that the back of the head fits against the rear part of the helmet 100, and the fixing strap 10 is tightened and the buckle is locked. Since the fixing strap 10 is inclined forward or is composed of two vertical and oblique straps, there must be a forward component force on the fixing strap 10. After the head circumference is adjusted, the fixing strap 10 is tightened and the buckle is locked. The back of the head will be affected by the forward component force, which increases the pressure value at the rear sensor 4. That is, the pressure value C during standard wearing is greater than the pressure value B when the buckle is locked but the fixing strap 10 is not tightened or the buckle is not locked.

[0053] Preferably, the value of A is slightly greater than the pressure value generated by the weight of the helmet 100. When the buckle of the fixing strap 10 of the helmet 100 is locked but the fixing strap 10 is not tightened or the buckle is not locked, the pressure value detected by the top sensor 3 is actually the pressure value generated by the weight of the helmet 100. When the fixing strap 10 is tightened and the buckle is locked, the pressure value between the top of the head and the helmet 100 will be greater than the pressure value generated by the weight of the helmet 100.

[0054] The method of the present invention combines the pressure value between the top of the head and the top of the helmet 100, and the pressure value between the back of the head and the back of the helmet 100, to determine whether the rider is wearing a helmet and whether the helmet is worn in a standard manner, and controls the speed of the electric bicycle according to the use status of the rider's helmet, preventing the rider from riding the electric bicycle without wearing a helmet, and preventing the rider from driving the electric bicycle at high speed when the helmet is not worn in a standard manner, thereby ensuring the safety of the rider. The helmet of the present invention is provided with sensors at the top and the rear, avoiding the installation and replacement problems caused by providing the detection sensing components on the fixing belt 10 and the lock buckle.

[0055] When the pressure value detected by the top sensor 3 is ≥A and the pressure value of the rear sensor 4 is <B, or the pressure value detected by the top sensor 3 is ≥A and the pressure value of the rear sensor 4 is <C, the current controller makes the input current peak value of the motor of the electric bicycle 200 50% of the original peak value. For example, the original maximum speed of the electric bicycle 200 can reach 30km / h, but after the restriction, the maximum speed of the electric bicycle 200 can only reach 15km / h.

[0056] The handlebar speed regulator of the electric bicycle 200 includes a power tube, and the electric bicycle 200 adjusts the output current of the motor through the power tube. The current controller is connected to the power tube, and the current controller controls the power tube of the electric bicycle 200. A wireless signal receiving module is provided in the electric bicycle 200, and a wireless signal output module is provided in the helmet 100. It can also be that a wireless sensor transceiver module is provided inside the helmet 100 and inside the electric bicycle 200. For example, a group of Bluetooth transceiver modules can be used to realize wireless signal transmission. The electric bicycle 200 has a microprocessor inside. After the microprocessor of the electric bicycle 200 receives the wireless signal from the processor of the helmet 100, it controls the action of the motor of the electric bicycle 200 accordingly according to the data transmitted by the signal. The principle of controlling the speed of the electric bicycle 200 is: the speed regulating handle 201 of the electric bicycle 200 is connected to the handlebar speed regulator, and the speed regulating handle 201 is rotated to change the magnetic field strength around the internal Hall element, thereby changing the output voltage of the Hall handle. This output voltage is input to the corresponding controller, and the controller performs PWM pulse width modulation according to the size of this output voltage. PWM uses the digital output of the microprocessor of the electric bicycle 200 to control the analog circuit. The controller controls the on and off ratio of the power tube according to the strength of the PWM signal, and then controls the size of the motor speed. When the signal of the speed control handle 201 is weak, the power tube outputs a small current and the motor speed is relatively slow; on the contrary, when the signal of the speed control handle 201 is strong, the current obtained by the motor increases and the speed increases. That is, the working principle of the handlebar speed regulator of the electric bicycle 200 is to detect the strength of the output signal of the speed control handle 201 through the microprocessor, and then convert this changing signal into a driving signal for driving the power tube through the controller, and the power tube provides the corresponding current to the motor to operate. The present invention adds a current controller between the controller and the power tube of the electric bicycle 200, and the current controller changes the driving signal of the power tube according to the signal transmitted by the helmet 100 processor. The helmet 100 processor controls the current controller according to the pressure value detected by the top sensor 3 and the rear sensor 4.

[0057] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A helmet (100) capable of improving wearing safety, comprising an outer shell (1) and an inner liner (2), wherein the inner liner (2) is located inside the outer shell (1), and is characterized in that: It also includes a top sensor (3) and a rear sensor (4), wherein the top sensor (3) is arranged at the top of the lining (2), and the rear sensor (4) is arranged at the rear of the lining (2), and both the top sensor (3) and the rear sensor (4) are thin film pressure sensors; A buckle (5) is provided on the outer wall of the housing (1), a battery panel (6) is installed in the buckle (5), and the battery panel (6) supplies power to the processor, the top sensor (3) and the rear sensor (4); The buckle (5) is used in conjunction with an electric bicycle hook (7); the electric bicycle hook (7) is a slot-type hook with an upper opening; the slot-type hook comprises a bottom surface (7a), and a first side wall (7b), a second side wall (7c), a third side wall (7d) and a fourth side wall (7e) connected in sequence; the first side wall (7b) is fixed to the electric bicycle (200); the second side wall (7c) and the fourth side wall (7e) are both provided with a groove (7f) that is connected to the upper opening of the slot-type hook; the third side wall (7d) is provided with a first receiving groove (7g); the first receiving groove (7g) is connected to the first receiving groove (7g); The upper end of the slot-type hook is open and through, the buckle (5) is T-shaped, the battery panel (6) is arranged in the T-shaped transverse section (5a), and the end of the T-shaped vertical section 5b away from the transverse section (5a) is fixed to the housing (1); when the buckle (5) is used in conjunction with the electric bicycle hook (7), the T-shaped transverse section (5a) abuts against the bottom surface (7a) of the slot-type hook, and the T-shaped vertical section 5b extends from the first receiving groove (7g), and the first side wall (7b) is provided with a wireless charging module (8), and the wireless charging module (8) is connected to the vehicle battery of the electric bicycle (200) through a wire (11); A current controller is provided between the onboard battery of the electric bicycle (200) and the motor of the electric bicycle (200); the handlebar speed regulator of the electric bicycle (200) controls the output current of the onboard battery of the electric bicycle (200) through the current controller; a wireless signal output module and a processor are provided between the outer shell (1) and the inner lining (2); the top sensor (3) and the rear sensor (4) are both connected to the processor signal; the wireless signal receiving module receives the signal of the wireless signal output module; and the processor and the current controller are connected to the wireless signal output module and the wireless signal receiving module signal.

2. The helmet (100) capable of improving wearing safety according to claim 1, characterized in that: The top sensor (3) is arranged on the top inner wall of the lining (2), and the rear sensor (4) is arranged on the rear inner wall of the lining (2).

3. The helmet (100) capable of improving wearing safety according to claim 1, characterized in that: A photovoltaic panel (9) is installed on the top of the housing (1), and the battery panel (6) in the buckle (5) is electrically connected to the photovoltaic panel (9).

4. The helmet (100) capable of improving wearing safety according to claim 1, characterized in that: The wireless signal output module and the wireless signal receiving module are a group of Bluetooth transceiver modules.

5. The helmet (100) capable of improving wearing safety according to claim 1, characterized in that: The bottom surface (7a) of the groove-type hook is provided with a second receiving groove (7h), and the first receiving groove (7g) is connected to the second receiving groove (7h).

6. The helmet (100) capable of improving wearing safety according to claim 1, characterized in that: The outer shell (1) is made of polycarbonate, and the inner lining (2) is made of polystyrene foam.

7. The control method for a helmet (100) capable of improving wearing safety according to any one of claims 1 to 6, characterized in that: The steps are as follows: the processor controls the current controller to adjust the output current of the onboard battery of the electric bicycle (200) according to the pressure values ​​detected by the top sensor (3) and the rear sensor (4), so as to control the rotation speed of the motor of the electric bicycle (200), thereby controlling the speed of the electric bicycle (200): a. When the pressure value detected by the top sensor (3) is less than A and the pressure value detected by the rear sensor (4) is less than B, the current controller controls the current input into the motor of the electric bicycle (200) to be 0, and the motor of the electric bicycle (200) cannot be started; b. When the pressure value detected by the top sensor (3) is less than A and the pressure value detected by the rear sensor (4) is greater than B, or the pressure value detected by the top sensor (3) is greater than or equal to A and the pressure value detected by the rear sensor (4) is less than C, the current controller controls the current peak value input to the motor of the electric bicycle (200) to decrease, thereby reducing the maximum value of the motor speed and the maximum vehicle speed; c. When the pressure value detected by the top sensor (3) is ≥A and the pressure value detected by the rear sensor (4) is ≥C, the current controller does not limit the input current of the motor of the electric bicycle (200), and the maximum speed of the motor of the electric bicycle (200) can reach the peak value, thereby maintaining the original maximum speed of the electric bicycle (200); Wherein, A, B and C are all threshold values, and the value of A is greater than the pressure value generated by the weight of the helmet (100), B is the pressure value between the back of the head and the helmet (100) when the back of the head and the helmet (100) just fit against each other when the buckle is locked but the fixing belt (10) is not tightened or the buckle is not locked, and C is the pressure value between the back of the head and the helmet (100) when the helmet (100) is worn in a standard state, and C>B.

8. The method for controlling a helmet (100) capable of improving wearing safety according to claim 7, characterized in that: The value of A is slightly greater than the pressure value generated by the weight of the helmet (100).

9. The method for controlling a helmet (100) capable of improving wearing safety according to claim 7, characterized in that: When the pressure value detected by the top sensor (3) is ≥A and the pressure value detected by the rear sensor (4) is <B, or the pressure value detected by the top sensor (3) is ≥A and the pressure value detected by the rear sensor (4) is <C, the current controller makes the input current peak value of the motor of the electric bicycle (200) 50% of the original peak value.

10. The method for controlling a helmet (100) capable of improving wearing safety according to claim 7, characterized in that: The handlebar speed regulator of the electric bicycle (200) comprises a power tube, and the electric bicycle (200) adjusts the output current of the motor through the power tube. The current controller is connected to the power tube, and the current controller controls the power tube of the electric bicycle (200).

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