CN102830634B - Function i ntegration system - Google Patents
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Abstract
A kind of function i ntegration system, comprising: at least two wireless communication modules; Switch unit, is connected between described wireless communication module and antenna; Control module, for output switch control signal, described switch controlling signal switches a connection wherein wireless communication module and antenna for controlling described switch unit.Technical solution of the present invention reduces the interference in the system of integrated multiple functional module between functional module.
Description
Technical field
The present invention relates to technical field of integrated circuits, particularly function i ntegration system.
Background technology
Along with the Highgrade integration of circuit board, the functional integration of electronic equipment is more and more higher, and power consumption is also more and more lower.Will functional module (also referred to as functional chip) be integrated in same system is more the inexorable trend of technical progress.
But, multiple functional module is integrated, then inevitably there is the problem of the signal disturbing between functional module.These signal disturbing comprise interference between homogenous frequency signal and high-frequency signal to the interference of low frequency signal.
For homogenous frequency signal interference, there is the frequency of the wireless signal of some radio communication mold Bulk transport identical or in identical frequency range at present, as WIFI module, bluetooth (BT) module and radio frequency (RF) module, the frequency of the wireless signal of its transmission is 2.4GHz, if these modules work simultaneously, interference can be produced each other, thus impact sends or receptivity.
Therefore, how to reduce the signal disturbing of function i ntegration system, the interference especially between homogenous frequency signal becomes current problem demanding prompt solution.
Summary of the invention
The present invention is to solve the interference problem in the system of existing integrated multiple functional module between functional module.
For solving the problems of the technologies described above, embodiment of the present invention provides a kind of function i ntegration system, comprising: at least two wireless communication modules; Switch unit, is connected between described wireless communication module and antenna; Control module, for output switch control signal, described switch controlling signal switches a connection wherein wireless communication module and antenna for controlling described switch unit.
Optionally, described control module comprises: the first dispensing unit, switches to for configuring described switch controlling signal the switch controlling signal respectively corresponding to wireless communication module in turn in the first predetermined period.
Optionally, described control module also comprises: the first detecting unit, for detecting in preset time range whether only have a kind of wireless signal that will transmit; Described first dispensing unit also for detect in preset time range at described first detecting unit only have a kind of wireless signal that will transmit time, configuring described switch controlling signal is correspond to the described wireless signal that will transmit and the switch controlling signal of predetermined hold-time.
Optionally, described control module comprises: the second detecting unit, for detecting the wireless signal whether having and will transmit; Second dispensing unit, for when described second detecting unit detects the wireless signal that will transmit, described switch controlling signal is configured to correspond to the switch controlling signal of the described wireless signal that will transmit, is communicated with wireless communication module for transmitting the described wireless signal that will transmit and antenna to control described switch unit and disconnects the connection of other wireless communication modules and antenna.
Optionally, described second detecting unit adopts the mode of poll to detect each wireless communication module, to determine whether the type of wireless signal and the described wireless signal that will transmit.
Optionally, described second dispensing unit is used for when the wireless signal having at least two kinds will transmit, and configures described switch controlling signal in the second predetermined period, switches to the switch controlling signal respectively corresponding to the described wireless signal that will transmit in turn.
Optionally, described second dispensing unit also for detect in preset time range at described second detecting unit only have a kind of wireless signal that will transmit time, configuring described switch controlling signal is correspond to the described wireless signal that will transmit and the switch controlling signal of predetermined hold-time.
Optionally, described switch unit for receiving described switch controlling signal, to be communicated with corresponding to the wireless communication module of described switch controlling signal and antenna and the connection disconnecting other wireless communication modules and antenna.
Optionally, corresponding to the wireless communication module of described switch controlling signal for receiving described switch controlling signal, to export start signal and to turn off control signal; Described switch unit for receiving described start signal, to be communicated with the described wireless communication module and the antenna that correspond to described switch controlling signal; Other wireless communication modules for receiving described shutoff control signal, to export cut-off signals; Described switch unit also for receiving described cut-off signals, to disconnect the connection of other wireless communication modules described and antenna.
Optionally, described function i ntegration system also comprises: power supply unit, comprises reference power supply output terminal and earthing power supply output terminal; Power conversion unit, is connected with the power input of each wireless communication module, for described reference power supply being converted to the power supply corresponding respectively to described each wireless communication module.
Optionally, described power conversion unit comprises: the first converting unit, for carrying out step-down and up-flow to described reference power supply; Second converting unit, for carrying out step-down to described reference power supply.
Optionally, the ground connection input end of described wireless communication module is connected with the earthing power supply output terminal of described power supply unit by magnetic bead or inductance element.
Optionally, described function i ntegration system also comprises: circuit board, and described circuit board comprises the first circuit region, second circuit district and isolated area; Described wireless communication module, switch unit and control module are integrated in high-frequency functions module, and described high-frequency functions module installation is in described first circuit region; Described second circuit district is provided with low frequency functional module; Described isolated area, between described first circuit region and second circuit district, is provided with insulation tank and connects the connecting portion in described first circuit region and second circuit district.
Optionally, described function i ntegration system also comprises power circuit, described power circuit comprises the first power output end and second source output terminal, described first power output end is suitable for providing the first power supply to described high-frequency functions module, and described second source output terminal is suitable for providing second source to described low frequency functional module.
Optionally, described first power supply is not identical with second source.
Optionally, the first power output end of described power circuit is connected with the power input of the first electric capacity with described wireless communication module by zero Europe resistance.
Technique scheme at least has following beneficial effect:
Being communicated with of multiple wireless communication module and antenna is switched by control module and switch unit, make within a period of time, only have a wireless communication module to be communicated with antenna, compared to existing multiple wireless communication module co-operation, the signal cross-talk between wireless communication module can be avoided, therefore can improve transmission performance during wireless communication module work.
Detect in preset time range only have a kind of wireless signal need transmission time, the wireless communication module that can be kept for transmitting this wireless signal is communicated with in the given time with antenna always, which ensure that integrality and the accuracy of this transmission of wireless signals.
Each wireless communication module is powered separately, the power supply signal interference between reducing because of wireless communication module and produce the possibility of voltage ripple at power input.The ground connection input end of each wireless communication module, by magnetic bead single-point grounding, can reduce the spuious possibility being passed to other wireless communication modules that this wireless communication module operationally produces.
High-frequency functions module and low frequency functional module are arranged at different circuit regions respectively, isolated area by having insulation tank between different circuit regions separates, can reduce the interference between the different functional module of frequency of operation, especially high-frequency functions module is to the interference of low frequency functional module.
The fluctuation of the power supply signal of high-frequency functions module can be reduced on the impact of the power supply signal of low frequency functional module by being connected in series zero Europe resistance at the power end of high-frequency functions module.
Accompanying drawing explanation
Fig. 1 is the structural representation of the function i ntegration system of embodiment of the present invention;
Fig. 2 is the structural representation of the function i ntegration system of the embodiment of the present invention 1;
Fig. 3 is the structural representation of the function i ntegration system of the embodiment of the present invention 2;
Fig. 4 is the structural representation of the function i ntegration system of the embodiment of the present invention 3;
Fig. 5 is the partial structurtes schematic diagram of the function i ntegration system of the embodiment of the present invention 4;
Fig. 6 is the structural representation of the function i ntegration system of the embodiment of the present invention 5.
Embodiment
Embodiment of the present invention provides a kind of function i ntegration system, as shown in Figure 1, comprising:
At least two wireless communication module M1, M2 ..., Mn;
Switch unit A1, be connected to described wireless communication module M1, M2 ..., between Mn and antenna A3;
Control module A2, for output switch control signal, described switch controlling signal switches a connection wherein wireless communication module and antenna for controlling described switch unit A1.
Switch unit A1 and control module A2 is utilized to make within a period of time, only have a wireless communication module to be communicated with antenna A3, this avoid the signal cross-talk each other caused by multiple wireless communication module co-operation, thus affect the problem of transmission performance.Described transmission comprises transmission and receives.
Below in conjunction with embodiment and accompanying drawing, comprise three wireless communication modules with described system, i.e. WIFI module, BT module and RF module, and three shared antennas of wireless communication modules are that example is described in detail to embodiment of the present invention.
Those skilled in the art should be appreciated that in other embodiments, and described wireless communication module is not limited to above-mentioned cited three kinds, such as, can also be 2G module, 3G module etc.Each wireless communication module also can not share same antenna, and use independently antenna respectively, i.e. antenna and wireless communication module one_to_one corresponding, each wireless communication module is connected with corresponding antenna by switch unit, the switch controlling signal that control module exports, by the switching of described switch unit, make only have a wireless communication module to be communicated with corresponding antenna in section sometime.
Embodiment 1
Because the frequency of the signal transmission of WIFI module, BT module and RF module is 2.4GHz, therefore three communication modules can share an antenna, to save hardware cost.But also because the frequency of the signal transmission of WIFI module, BT module and RF module is 2.4GHz, therefore the co-channel interference of these three communication modules is also particularly serious.
The function i ntegration system of the present embodiment as shown in Figure 2, except comprising WIFI module M1, BT module M2 and RF module M3, also comprises switch unit A1 and control module A2.Described control module A2 comprises the first dispensing unit A21, and described first dispensing unit A21 switches to for configuring described switch controlling signal the switch controlling signal respectively corresponding to wireless communication module in turn in the first predetermined period.Described first predetermined period is determined according to practical application, and general satisfaction is more than or equal to the temporal summation that each wireless communication module receives at least one packet, and the scope of such as the first predetermined period can be 3ms ~ 300ms.
Particularly, with the first predetermined period for 15ms, to be averagely allocated to time that each wireless communication module takies antenna be 5ms is example, and within 0 ~ 5ms time period, the switch controlling signal that the first dispensing unit A21 exports corresponds to WIFI module M1; Within 5ms ~ 10ms time period, the switch controlling signal that the first dispensing unit A21 exports corresponds to BT module M2; Within 10ms ~ 15ms time period, the switch controlling signal that the first dispensing unit A21 exports corresponds to RF module M3; Within 15 ~ 20ms time period, the switch controlling signal that the first dispensing unit A21 exports corresponds to WIFI module M1; Within 20ms ~ 25ms time period, the switch controlling signal that the first dispensing unit A21 exports corresponds to BT module M2; Within 25ms ~ 30ms time period, the switch controlling signal that the first dispensing unit A21 exports corresponds to RF module M3; Circulate with this.
It should be noted that, the transfer sequence of described switch controlling signal is not limited to above-mentioned lifted example, such as, also first can correspond to BT module, then corresponds to RF module, then corresponds to WIFI module; Or first correspond to RF module, then correspond to WIFI module, then correspond to BT module.In addition, in one-period, the time that each wireless communication module takies antenna may not be mean allocation, and such as, the time distributing to WIFI module can be grown relatively, and distributing to BT module can be relative shorter with the time of RF module.
In the present embodiment, switch unit A1 comprises 3 control input ends COM1, COM2 and COM3,3 Signal transmissions end S1, S2 and S3 and antenna connection terminal S4.The steering logic of described switch unit A1 is: as control input end COM1=1, COM2=0, COM3=0, and Signal transmissions end S1 is communicated with antenna connection terminal S4, and Signal transmissions end S2, S3 and antenna connection terminal S4 disconnects; As control input end COM1=0, COM2=1, COM3=0, Signal transmissions end S2 is communicated with antenna connection terminal S4, and Signal transmissions end S1, S3 and antenna connection terminal S4 disconnects; As control input end COM1=0, COM2=0, COM3=1, Signal transmissions end S3 is communicated with antenna connection terminal S4, and Signal transmissions end S1, S2 and antenna connection terminal S4 disconnects.
Control module A2 is communicated by USB interface with each wireless communication module, and described switch controlling signal is sent to corresponding wireless communication module by control module A2.
Particularly, switch controlling signal corresponding to WIFI module M1 is sent to WIFI module M1, WIFI module M1 exports start signal (the present embodiment is logical one) to control input end COM1, and WIFI module M1 also exports shutoff controls signal to BT module M2 and RF module M3; After BT module M2 receives described shutoff control signal, export cut-off signals (the present embodiment is logical zero) to control input end COM2; After RF module M3 receives described shutoff control signal, export cut-off signals to control input end COM3.Like this, WIFI module M1 is communicated with antenna A3 by Signal transmissions end S1, antenna connection terminal S4, realizes transmission and the reception of WIFI signal.Further, BT module M2 is not communicated with antenna A3 with RF module M3, because this reducing the transmission disturbance to WIFI signal.
Switch controlling signal corresponding to BT module M2 is sent to BT module M2, and BT module M2 exports start signal to control input end COM2, and BT module M2 also exports shutoff controls signal to WIFI module M1 and RF module M3; After WIFI module M1 receives described shutoff control signal, export cut-off signals to control input end COM1; After RF module M3 receives described shutoff control signal, export cut-off signals to control input end COM3.Like this, BT module M2 is communicated with antenna A3 by Signal transmissions end S2, antenna connection terminal S4, realizes transmission and the reception of BT signal.Further, WIFI module M1 is not communicated with antenna A3 with RF module M3, because this reducing the transmission disturbance to BT signal.
Switch controlling signal corresponding to RF module M3 is sent to RF module M3, and RF module M3 exports start signal to control input end COM3, and RF module M3 also exports shutoff controls signal to WIFI module M1 and BT module M2; After WIFI module M1 receives described shutoff control signal, export cut-off signals to control input end COM1; After BT module M2 receives described shutoff control signal, export cut-off signals to control input end COM2.Like this, RF module M3 is communicated with antenna A3 by Signal transmissions end S3, antenna connection terminal S4, realizes transmission and the reception of RF signal.Further, WIFI module M1 is not communicated with antenna A3 with BT module M2, because this reducing the transmission disturbance to RF signal.
It will be appreciated by those skilled in the art that, the structure realizing described switch unit A1 can have multiple, such as switch unit A1 can be the electronic switch of a high frequency, and described electronic switch has three control input ends, three Signal transmissions ends and an antenna connection terminal; Or, switch unit A1 can comprise three on-off elements, each on-off element is connected to WIFI module M1, BT module M2, between RF module M3 and antenna A3, each on-off element has the control end controlling it and open or close, and the control end of described three on-off elements is connected with WIFI module M1, BT module M2, RF module M3 respectively.
The first dispensing unit A21 of the present embodiment adopts the mode deploy switch control signal of time-division switching, switch unit A1 is based on configured switch controlling signal, take described antenna A3, to transmit respective wireless signal (in other words packet) at times with controlling WIFI module M1, BT module M2 and RF module M3 timesharing.Using the mode of antenna by controlling WIFI module M1, BT module M2 and RF module M3 in turn, solving the problem of co-channel interference, ensure that the signal transmission performance of each wireless communication module.Further, the time taking antenna due to each wireless communication module is ms level, and therefore also can reach each wireless communication module is almost the effect simultaneously worked.
Further, the described control module A2 of the present embodiment can also comprise: the first detecting unit A22, for detecting in preset time range whether only have a kind of wireless signal that will transmit; Described first dispensing unit A21 also for detect in preset time range at described first detecting unit A22 only have a kind of wireless signal that will transmit time, configuring described switch controlling signal is correspond to the described wireless signal that will transmit and the switch controlling signal of predetermined hold-time.
For example, the mode of poll that can adopt first detecting unit A22 detects WIFI module M1, BT module M2 and RF module M3, such as, take 5ms as each wireless communication module of cycle Polling, to determine that each wireless communication module is the need of transmitting wireless signals, only need to transmit a kind of wireless signal in preset time range when the first detecting unit A22 detects, such as, during WIFI signal, the first dispensing unit A21 exports and corresponds to WIFI module M1 and the switch controlling signal of predetermined hold-time.That is, when long-time (in preset time range) does not have BT signal and the transmission of RF signal demand, WIFI module M1 can be kept always to be communicated with antenna within a period of time, to guarantee the integrality that WIFI signal is transmitted and accuracy, to promote the transmission performance of WIFI signal.After the schedule time, the mode that the first dispensing unit A21 still adopts the time-division to switch configures described switch controlling signal.First detecting unit A22 detects can adopt prior art the need of transmitting wireless signals, no longer launches explanation at this.Described preset time range and the schedule time can preset according to actual application environment, and such as, preset time range can be 60ms, and the schedule time can be 30ms.
Embodiment 2
The present embodiment is mainly from the difference of embodiment 1: the structure of switch unit is different, the switch controlling signal that control module A2 exports directly is sent to switch unit A1, namely directly controlled the switching over of switch unit A1 by control module A2, instead of control the switching over of switch unit A1 by wireless communication module.In the present embodiment, the communication between each wireless communication module can be omitted.
Particularly, as shown in Figure 3, described switch unit A1 comprises control end CT, Signal transmissions end S1, S2, S3 and antenna connection terminal S4.Control end CT receives described switch controlling signal, if described switch controlling signal is the switch controlling signal corresponding to WIFI module M1, Signal transmissions end S1 is communicated with antenna connection terminal S4, and Signal transmissions end S2, S3 and antenna connection terminal S4 disconnects; If described switch controlling signal is the switch controlling signal corresponding to BT module M2, Signal transmissions end S2 is communicated with antenna connection terminal S4, and Signal transmissions end S1, S3 and antenna connection terminal S4 disconnects; If described switch controlling signal is the switch controlling signal corresponding to RF module M3, Signal transmissions end S3 is communicated with antenna connection terminal S4, and Signal transmissions end S1, S2 and antenna connection terminal S4 disconnects.
Embodiment 3
The present embodiment is mainly from the difference of embodiment 1: the realization of control module is different, and as shown in Figure 4, described control module A2 comprises: the second detecting unit A23, for detecting the wireless signal whether having and will transmit; Second dispensing unit A24, for when described second detecting unit A23 detects the wireless signal that will transmit, described switch controlling signal is configured to correspond to the switch controlling signal of the described wireless signal that will transmit, is communicated with wireless communication module for transmitting the described wireless signal that will transmit and antenna to control described switch unit A1 and disconnects the connection of other wireless communication modules and antenna.
During concrete enforcement, described second detecting unit A23 can adopt the mode of poll to detect WIFI module, BT module and RF module, to determine whether the type of wireless signal and the described wireless signal that will transmit.To transmission WIFI signal, the second dispensing unit A24 exports the switch controlling signal corresponding to WIFI module M1; To transmission BT signal, the second dispensing unit A24 exports the switch controlling signal corresponding to BT module M2; To transmission RF signal, the second dispensing unit A24 exports the switch controlling signal corresponding to RF module M3.
When the second detecting unit A23 detects the two or more wireless signal that will transmit, it is the switch controlling signal respectively corresponding to the described wireless signal that will transmit that the second dispensing unit A24 switches described control signal in the second predetermined period.So that WIFI signal and BT signal will be transmitted, second dispensing unit A24 exports the switch controlling signal corresponding to WIFI module M1 and the switch controlling signal corresponding to BT module M2 in turn, such as within 0 ~ 5ms time period, export the switch controlling signal corresponding to WIFI module M1; Within 5ms ~ 10ms time period, export the switch controlling signal corresponding to BT module M2; Within 10ms ~ 15ms time period, export the switch controlling signal corresponding to WIFI module M1; Within 15ms ~ 20ms time period, export the switch controlling signal corresponding to BT module M2; Circulate with this.The setting of described second predetermined period can be similar with described first predetermined period.
After the wireless signal that will transmit completes transmission by wireless communication module and antenna, the second detecting unit A23 continues to detect whether there is the signal that will transmit.
Further, described second dispensing unit A24 also for detect in preset time range at described second detecting unit A23 only have a kind of wireless signal that will transmit time, configuring described switch controlling signal is correspond to the described wireless signal that will transmit and the switch controlling signal of predetermined hold-time.Explanation about this part can the relevant portion explanation of reference example 1.
The second dispensing unit A24 of the present embodiment carrys out deploy switch control signal based on the real-time detection of the second detecting unit A23, switch unit A1 is based on configured switch controlling signal, control corresponding wireless communication module and take antenna A3, and other wireless communication modules disconnect the connection with antenna A3, solve the problem of co-channel interference thus, ensure that wireless communication module can send exactly or receive wireless signal.
Embodiment 4
In order to reduce the interference between each wireless communication module further, the power supply input of the present embodiment to wireless communication module has done improvement, to reduce the power supply disturbance between each wireless communication module.
Fig. 5 shows the partial structurtes schematic diagram of the function i ntegration system of the present embodiment, and described function i ntegration system also comprises: power supply unit A4 and power conversion unit A5.Fig. 5 illustrate only the connection of power supply unit A4, power conversion unit A5 and WIFI module M1, BT module M2, RF module M3, and other structures can with reference to above-described embodiment.
In the present embodiment, described power supply unit A4 is USB power source, and described power supply unit A4 comprises reference power supply output terminal USB_VDD and earthing power supply output terminal USB_GND.The voltage of reference power supply USB_VDD is generally 5V, and electric current is mA level, and the voltage of earthing power supply USB_GND is generally 0V.
Described power conversion unit A5 is connected with the power input of each wireless communication module, for described reference power supply USB_VDD is converted to the power supply corresponding respectively to described each wireless communication module.Particularly, described power conversion unit A5 comprises 2 input ends VDD0, GND0 and 3 output terminals VDD1, VDD2 and VDD3.Input end VDD0 connects reference power supply output terminal USB_VDD, input end GND0 input grounding power output end USB_GND.Output terminal VDD1 is connected with the power input VDDA of WIFI module M1, exports the power supply be suitable for needed for WIFI module M1 work; Output terminal VDD2 is connected with the power input VDDB of BT module M2, exports the power supply be suitable for needed for BT module M2 work; Output terminal VDD3 is connected with the power input VDDC of RF module M3, exports the power supply be suitable for needed for RF module M3 work.
By the power supply requirement of each wireless communication module, each wireless communication module is powered separately, the power supply signal interference between reducing because of wireless communication module and produce the possibility of voltage ripple at power input.
Because transient current when WIFI module M1 works is comparatively large, when therefore the power conversion unit A5 of the present embodiment provides the power supply of WIFI module, need reference power supply USB_VDD step-down, and need motor current.Described power conversion unit A5 can comprise further: the first converting unit A51, for carrying out step-down and up-flow to described reference power supply USB_VDD; Second converting unit A52, for carrying out step-down to described reference power supply USB_VDD, but can keep electric current constant.
In the present embodiment, as shown in Figure 5, described first converting unit A51 can be DC-DC (DC-DC) module, and output terminal is VDD1 and VDD2; Described second converting unit A52 can be low pressure difference linearity voltage stabilizing (LDO) module, and output terminal is VDD3.The power supply that output terminal VDD1 output voltage is 3.3V, electric current is A level is to power input VDDA, the power supply that output terminal VDD2 output voltage is 3.3V, electric current is A level is to power input VDDB, and the power supply that output terminal VDD3 output voltage is 3.3V, electric current is mA level is to power input VDDC.
It should be noted that, the present embodiment make use of DC-DC module and has two output terminals, the power supply of BT module M2 is also exported by DC-DC module, and due to transient current when BT module M2 works little, be generally mA level, therefore in other embodiments also can again by a LDO module output voltage be 3.3V, electric current is the power input VDDB of power supply to BT module M2 of mA level.
Further, as shown in Figure 5, the ground connection input end GNDA of WIFI module M1 can be connected with earthing power supply output terminal USB_GND by magnetic bead B1, the ground connection input end GNDB of BT module M2 can be connected with earthing power supply output terminal USB_GND by magnetic bead B2, and the ground connection input end GNDC of RF module M3 can be connected with earthing power supply output terminal USB_GND by magnetic bead B3.The ground connection input end of each wireless communication module, by magnetic bead single-point grounding, can reduce the spuious possibility being passed to other wireless communication modules that this wireless communication module operationally produces.In other embodiments, the ground connection input end of described wireless communication module also can be connected with the earthing power supply output terminal of described power supply unit by inductance element.
Embodiment 5
The function i ntegration system of the present embodiment comprises high-frequency functions module and low frequency functional module, the structure of described high-frequency functions module can be any one structure of embodiment 1 ~ 3, and described low frequency functional module can comprise at least one in button detection module, infrared module and audio identification module.Usually, the frequency of operation of described high-frequency functions module at more than 1GHz, such as 2.4GHz ~ 5.0GHz, the frequency of operation of described low frequency functional module at below 1MHz, such as 0 ~ 100KHz.
Please refer to Fig. 6, the function i ntegration system of the present embodiment comprises: circuit board 1, and described circuit board comprises the first circuit region 11, second circuit district 12 and isolated area 13.
Described high-frequency functions module 111 is arranged at described first circuit region 11, described low frequency functional module 121 is arranged at described second circuit district 12, the low frequency functional module 121 of the present embodiment is button detection module, it comprises multiple button 51 and circuit for detecting 52, button 51 can be contact button or air type button, and circuit for detecting 52 is for detecting the triggering of button 51.
Described isolated area 13, between described first circuit region 11 and second circuit district 12, is provided with insulation tank 131 and connects the connecting portion 132 in described first circuit region 11 and second circuit district 12.
Described insulation tank 131 is arranged at the signal disturbing between the circuit in the first circuit region 11 and second circuit district 12 for reducing, and described insulation tank 131 can be arranged between high-frequency functions module 111 and low frequency functional module 121.Described insulation tank 131 can not be filled (or coating) any material, especially conductive material, makes insulation tank 131 become air groove.Because air is preferably megohmite insulant, so insulation tank 131 can reduce the signal disturbing between high-frequency functions module 111 and low frequency functional module 121.Described insulation tank 131 also can fill other megohmite insulants for reducing interference between high-frequency functions module 111 and low frequency functional module 121.The degree of depth of described insulation tank 131 can set according to actual needs.In order to improve the antijamming capability effect of insulation tank 131, insulation tank 131 can run through described circuit board.The quantity of described insulation tank 131 can be greater than 1, is linked together between insulation tank 131 by connecting portion 132.
The connecting portion 132 connecting described first circuit region 11 and second circuit district 12 may be used for arranging the circuit connecting wire in the first circuit region 11 and second circuit district 12, when ensure the fastness of circuit board and connecting portion 132 can the wiring of bearer circuit connecting line, described insulation tank 131 can fill up the region in isolated area 13 except connecting portion 132.
Described first circuit region 11 is also provided with control circuit 41, and described connecting portion 132 is provided with the signal wire connecting described control circuit 41 and low frequency functional module.In the present embodiment, described control circuit 41 is MCU, and its signal detected for the treatment of circuit for detecting 52, frequency of operation is about 32MHz.Because key press detecting circuit is comparatively strict to demand on signal quality, and the signal disturbing of high-frequency functions module 111 couples of MCU is not very large, so MCU is arranged at the first circuit region 11.Preferably, MCU is arranged at the first circuit region 11 near the position of key press detecting circuit.
Further, as shown in Figure 6, the function i ntegration system of the present embodiment also comprises power circuit 2, described power circuit 2 comprises the first power output end 21 and second source output terminal 22, described first power output end 21 is suitable for providing the first power supply to described high-frequency functions module 111, and described second source output terminal 22 is suitable for providing second source to described low frequency functional module 121.
Described first power supply and second source can be that magnitude of voltage is identical, current value is not identical, or magnitude of voltage is not identical, current value is identical, or magnitude of voltage is not identical with current value.In the present embodiment, described first power output end 21 exports first power supply of 3.3V, 10A, and described second source output terminal 22 exports the second source of 3.3V, 10mA.
In the present embodiment, the first power output end 21 of described power circuit 2 is connected with the power end of high-frequency functions module 111 with the first electric capacity C1 by zero Europe resistance R1.Wherein, the power end of high-frequency functions module 111 comprises the power input of each wireless communication module, such as, WIFI module the power input VDDB of power input VDDA, BT module and the power input VDDC of RF module.
The power supply of the first power supply needed for high-frequency functions module 111, its current value is greater than usually even much larger than the current value of second source, even if therefore the first power supply produces the wave disturbance of little line, this disturbance also can produce very large interference to second source.When large encapsulation, high-precision zero Europe resistance R1 can ensure that pressure drop is substantially constant, reduce the interference of the first power supply to second source.
The capacitance of described first electric capacity C1 can be 10 μ F-100 μ F, and the pressure drop rapid drawdown in the high-frequency functions module 111 that the first electric capacity C1 of large encapsulation, bulky capacitor value can cause big current supplements.In other embodiments, the first electric capacity C1 also can omit.
It should be noted that, the first power supply that the power circuit 2 of the present embodiment provides and the power supply needed for high-frequency functions module 111 adapt, and in other embodiments, if the power supply that described power circuit provides is not suitable for high-frequency functions module 111, such as voltage is higher or electric current is less, change-over circuit then can also be utilized to carry out voltage and/or electric current conversion to the power supply that described power circuit provides, to export and the power supply that adapts of each wireless communication module in high-frequency functions module 111, the structure of described change-over circuit can power conversion unit described in reference example 4.
Please continue to refer to Fig. 6, the second source output terminal 22 of described power circuit 2 can be connected with the power end of described low frequency functional module 121, the power end of control circuit 41 by filtering circuit 3.Described filtering circuit 3 comprises: magnetic bead B4, the first filter capacitor C31 and the second filter capacitor C32, the first end of described magnetic bead B4 connects the second source output terminal 22 of described power circuit 2 and the first end of the first filter capacitor C31, second end of described magnetic bead B4 connects the first end of the described power end of circuit for detecting 52, the power end of MCU and the second filter capacitor C32, described second end of the first filter capacitor C31 and the second end ground connection of the second filter capacitor C32.
In sum, technique scheme can mutual interference in reduction system between multiple functional module, thus improves integrated level and the performance of system.
Although the present invention discloses as above with preferred embodiment, the present invention is not defined in this.Any those skilled in the art, without departing from the spirit and scope of the present invention, all can make various changes or modifications, and therefore protection scope of the present invention should be as the criterion with claim limited range.
Claims (18)
1. a function i ntegration system, is characterized in that, comprising:
At least two wireless communication modules, the frequency of described at least two wireless communication modules is identical or in identical frequency range, described at least two wireless communication modules share the same antenna;
Switch unit, is connected between described wireless communication module and antenna;
Control module, for output switch control signal, described switch controlling signal switches a connection wherein wireless communication module and antenna for controlling described switch unit, and within a period of time, only have a wireless communication module to be communicated with antenna;
Circuit board, described circuit board comprises the first circuit region, second circuit district and isolated area; Described wireless communication module, switch unit and control module are integrated in high-frequency functions module, and described high-frequency functions module installation is in described first circuit region; Described second circuit district is provided with low frequency functional module; Described isolated area, between described first circuit region and second circuit district, is provided with insulation tank and connects the connecting portion in described first circuit region and second circuit district;
Described control module, adopts the mode of poll to detect each wireless communication module, to determine whether the wireless signal that will transmit;
Described control module, detect at least two kinds to transmit wireless signal time, configure described switch controlling signal and switch in turn in the second predetermined period and respectively correspond to the switch controlling signal of the described wireless signal that will transmit;
Described control module, detect in preset time range only have a kind of wireless signal that will transmit time, configuring described switch controlling signal is correspond to the described wireless signal that will transmit and the switch controlling signal of predetermined hold-time.
2. function i ntegration system as claimed in claim 1, it is characterized in that, described control module comprises: the first dispensing unit, switches to for configuring described switch controlling signal the switch controlling signal respectively corresponding to wireless communication module in turn in the first predetermined period.
3. function i ntegration system as claimed in claim 2, it is characterized in that, described control module also comprises: the first detecting unit, for detecting in preset time range whether only have a kind of wireless signal that will transmit; Described first dispensing unit also for detect in preset time range at described first detecting unit only have a kind of wireless signal that will transmit time, configuring described switch controlling signal is correspond to the described wireless signal that will transmit and the switch controlling signal of predetermined hold-time.
4. function i ntegration system as claimed in claim 1, it is characterized in that, described control module comprises:
Second detecting unit;
Second dispensing unit, for when described second detecting unit detects the wireless signal that will transmit, described switch controlling signal is configured to correspond to the switch controlling signal of the described wireless signal that will transmit, is communicated with wireless communication module for transmitting the described wireless signal that will transmit and antenna to control described switch unit and disconnects the connection of other wireless communication modules and antenna.
5. function i ntegration system as claimed in claim 1, it is characterized in that, described switch unit for receiving described switch controlling signal, to be communicated with corresponding to the wireless communication module of described switch controlling signal and antenna and the connection disconnecting other wireless communication modules and antenna.
6. function i ntegration system as claimed in claim 1, is characterized in that, corresponding to the wireless communication module of described switch controlling signal for receiving described switch controlling signal, to export start signal and to turn off control signal; Described switch unit for receiving described start signal, to be communicated with the described wireless communication module and the antenna that correspond to described switch controlling signal; Other wireless communication modules for receiving described shutoff control signal, to export cut-off signals; Described switch unit also for receiving described cut-off signals, to disconnect the connection of other wireless communication modules described and antenna.
7. function i ntegration system as claimed in claim 1, it is characterized in that, described wireless communication module is WIFI module, bluetooth module or radio-frequency module.
8. function i ntegration system as claimed in claim 1, is characterized in that, also comprise:
Power supply unit, comprises reference power supply output terminal and earthing power supply output terminal;
Power conversion unit, is connected with the power input of each wireless communication module, for described reference power supply being converted to the power supply corresponding respectively to described each wireless communication module.
9. function i ntegration system as claimed in claim 8, it is characterized in that, described power conversion unit comprises:
First converting unit, for carrying out step-down and up-flow to described reference power supply;
Second converting unit, for carrying out step-down to described reference power supply.
10. function i ntegration system as claimed in claim 8, is characterized in that, the ground connection input end of described wireless communication module is connected with the earthing power supply output terminal of described power supply unit by magnetic bead or inductance element.
11. function i ntegration systems as claimed in claim 1, it is characterized in that, described insulation tank is air groove.
12. function i ntegration systems as claimed in claim 1, it is characterized in that, described first circuit region is also provided with control circuit, and described connecting portion is provided with the signal wire connecting described control circuit and low frequency functional module.
13. function i ntegration systems as claimed in claim 1, it is characterized in that, also comprise power circuit, described power circuit comprises the first power output end and second source output terminal, described first power output end is suitable for providing the first power supply to described high-frequency functions module, and described second source output terminal is suitable for providing second source to described low frequency functional module.
14. function i ntegration systems as claimed in claim 13, it is characterized in that, described first power supply is not identical with second source.
15. function i ntegration systems as claimed in claim 13, is characterized in that, the first power output end of described power circuit is connected with the power input of described wireless communication module by zero Europe resistance.
16. function i ntegration systems as claimed in claim 14, is characterized in that, the first power output end of described power circuit is connected with the power input of the first electric capacity with described wireless communication module by zero Europe resistance.
17. function i ntegration systems as claimed in claim 13, it is characterized in that, the second source output terminal of described power circuit is connected by the power end of filtering circuit with described low frequency functional module, described filtering circuit comprises: magnetic bead, first filter capacitor and the second filter capacitor, the first end of described magnetic bead connects the second source output terminal of described power circuit and the first end of the first filter capacitor, the power end of the second end difference connection sensing circuit of described magnetic bead, the power end of MCU and the first end of the second filter capacitor, second end of described first filter capacitor and the second end ground connection of the second filter capacitor.
18. function i ntegration systems as claimed in claim 13, it is characterized in that, described low frequency functional module comprises at least one in button detection module, infrared module and audio identification module.
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| CN204014095U (en) * | 2014-04-23 | 2014-12-10 | 中兴通讯股份有限公司 | A kind of mobile communication terminal |
| KR102279307B1 (en) * | 2014-12-02 | 2021-07-21 | 현대모비스 주식회사 | Apparatus and method for controlling data communication of vehicle |
| CN105306088A (en) * | 2015-11-12 | 2016-02-03 | 邓志华 | Bluetooth and WIFI two-in-one module capable of communicating simultaneously |
| US10200183B2 (en) | 2016-06-22 | 2019-02-05 | Apple Inc. | Multi-radio filtering front-end circuitry for transceiver systems |
| CN109673044A (en) * | 2018-12-28 | 2019-04-23 | 江苏惠通集团有限责任公司 | Communication control method, chip, the gateway apparatus of chip |
| CN110233630B (en) * | 2019-04-29 | 2022-03-25 | 惠州Tcl移动通信有限公司 | Mobile terminal data processing method, mobile terminal and storage medium |
| CN110365357B (en) * | 2019-07-04 | 2021-09-21 | Oppo广东移动通信有限公司 | Signal processing method and device and storage medium |
| CN110554267A (en) * | 2019-09-24 | 2019-12-10 | 贵州航天电子科技有限公司 | Response signal test system |
| CN110634278A (en) * | 2019-10-08 | 2019-12-31 | 荆州介太科技有限公司 | Communication method, device and control system |
| US12075352B2 (en) | 2020-09-04 | 2024-08-27 | Apple Inc. | Power management for signal scanning |
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| US6208844B1 (en) * | 1999-02-23 | 2001-03-27 | Conexant Systems, Inc. | System and process for shared functional block communication transceivers with GPS capability |
| SE516531C2 (en) * | 1999-10-29 | 2002-01-29 | Allgon Ab | Antenna device switchable between a plurality of configuration states depending on the received quantity and associated method |
| US6816711B2 (en) * | 2001-11-27 | 2004-11-09 | Qualcomm Incorporated | GPS equipped mobile phone with single shared antenna |
| KR20060124090A (en) * | 2005-05-30 | 2006-12-05 | 삼성전자주식회사 | 3-band single antenna sharing unit |
| JP5125115B2 (en) * | 2006-01-31 | 2013-01-23 | ソニー株式会社 | Printed wiring board assembly |
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| CN101236597A (en) * | 2008-01-17 | 2008-08-06 | 北京邮电大学 | An RFID antenna polling switching device |
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