CN103187597A - Self-adaptive charge rate adjusting method and defibrillator - Google Patents
Self-adaptive charge rate adjusting method and defibrillator Download PDFInfo
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- CN103187597A CN103187597A CN2011104543906A CN201110454390A CN103187597A CN 103187597 A CN103187597 A CN 103187597A CN 2011104543906 A CN2011104543906 A CN 2011104543906A CN 201110454390 A CN201110454390 A CN 201110454390A CN 103187597 A CN103187597 A CN 103187597A
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Abstract
The embodiment of the invention provides a self-adaptive charge rate adjusting method comprising the steps that: defibrillator battery current parameter information is obtained; according to a preset correspondence between battery parameter information and charging mode, a current charging mode is determined, wherein each charging mode corresponds to a charge rate; and the defibrillator is subjected to defibrillation charging according to the charge rate corresponding to the determined charging mode. The invention also provides a defibrillator. With the method and the defibrillator provided by the invention, the charge rate during the defibrillation charging process can be adjusted with a self-adaptive manner according to the current parameter information of the defibrillator battery, such that defibrillation charging reliability and success rate of the defibrillator under harsh conditions can be effectively ensured.
Description
Technical field
The present invention relates to field of medical, relate in particular to method and defibrillator that a kind of self adaptation is adjusted charge rate.
Background technology
At present the whole world every year 2000000 people of surpassing are arranged since heart arrest (Sudden Cardiac Arrest SCA) dies suddenly, and electric defibrillation is the present unique effective methods for the treatment of of SCA.And the SCA situation overwhelming majority occurs in the public place outside the hospital, and witness or collaborationist generally are the ordinary persons who does not pass through professional first aid training, so the general public participation defibrillation is significant.Especially American-European developed country worldwide at present, the public participation defibrillation is more and more universal.A lot of countries on the airport, public places such as sports ground, school all are provided with automated external defibrillator (Automatic External Defibrillator, AED), particularly 2010 type page lung recovery guides of American Heart Association and the issue of the European CPR committee are all promoting to popularize the plan of public's defibrillation energetically.
In hospital internal and professional first-aid centre, defibrillation monitor and AED have been indispensable equipment simultaneously, bring into play important role in clinical rescue and treatment.
But the inventor finds, operating temperature ranges such as the defibrillation monitor that uses and AED are all in the scope about 0-45 ℃ at present.Under low temperature condition (such as-20 ℃), defibrillation monitor and AED are general just can't operate as normal.Its main cause is that the employed lithium battery of defibrillation monitor or AED discharge capability under low temperature condition descends very obvious, as shown in Figure 1, namely show the discharge capability curve chart of a kind of lithium battery under different temperatures, therefrom as can be seen, under the situation of-10 ℃ and-20 ℃, electric core (being the storage unit of lithium battery) discharge capability reduces greatly.In the defibrillation charging stage, need bigger electric current (for example 5-8A) usually, this moment, electric core can't effectively provide sufficient electric current, caused defibrillation charging failure, thereby may cause and can't effectively sue and labour to patient.In addition, in charging process, may there be the single-unit electricity core fault of battery, if existing battery pathological system does not detect, then may be in charging process, because cell voltage or current capacity deficiency cause the charging failure.Moreover even in normal working range, the employed battery of defibrillation monitor or AED is along with the increase of access times, and its battery capacity descends gradually, and the internal resistance of electric core constantly increases simultaneously, causes the ability of battery to descend.The conventional way of industry is that requirement defibrillation monitor or the employed battery of AED (as 2 years) after having used certain time limit just need be changed at present.But the general user may defibrillation charging failure may occur because a variety of causes is changed and can be postponed or not come and change, if emergency situations takes place this moment, battery possibly can't provide the ability of defibrillation charging as usual, thereby causes the risk of delay treatment.
Summary of the invention
In order to eliminate the above-mentioned defective of prior art, the present invention proposes method and the defibrillator that a kind of self adaptation is adjusted charge rate, can be according to the parameter information of the current battery of defibrillator, self adaptation is adjusted the charge rate of defibrillation charging process, can guarantee effectively that defibrillator is relatively carrying out reliability and the success rate that defibrillation charges under the condition of severe.
In order to solve the problems of the technologies described above, the embodiment of the invention provides a kind of self adaptation to adjust the method for charge rate, comprising:
Obtain the parameter current information of defibrillator battery, described parameter information comprises in magnitude of voltage, current value or the internal battery impedance at the electric core temperature value of described battery, electric core access times, charge value, battery two ends at least one;
According to the battery parameter information that sets in advance and the corresponding relation of charge mode, determine current charge mode, the corresponding charge rate of each charge mode;
Be that defibrillator carries out defibrillation charging according to described definite corresponding charge rate of current charge mode.
Further, the battery parameter information that described basis sets in advance and the corresponding relation of charge mode determine that current charge mode comprises, in the self check stage:
When the electric core temperature value that determines described battery is lower than preset first threshold value, determine that described current charge mode is the first trickle charge pattern;
When the electric core access times that continue to determine described battery are higher than second threshold value, determine that described current charge mode is the second trickle charge pattern;
When the charge value that continues to determine described battery is lower than the 3rd threshold value, determine that described current charge mode is the 3rd trickle charge pattern;
Otherwise, determine that described current charge mode is normal charge mode;
Wherein, the charge rate difference of the described first trickle charge pattern, the second trickle charge pattern, the 3rd trickle charge pattern, and be lower than the charge rate of the normal charge mode of described defibrillator.
Further, the battery parameter information that described basis sets in advance and the corresponding relation of charge mode, determine that current charge mode further is:
In the charging stage, when the voltage that determines described battery two ends less than the 4th threshold value, or electric current determine that described current charge mode is the 3rd trickle charge pattern, otherwise described current charge mode is normal charge mode greater than the 5th threshold value.
Correspondingly, the invention provides a kind of defibrillator, the defibrillation control unit that comprise battery unit, is connected with battery unit, defibrillation charhing unit and defibrillation discharge cell is characterized in that, wherein,
Described defibrillation control unit, be used for obtaining from described battery unit the parameter information of current battery, and according to the battery parameter information that sets in advance and the corresponding relation of charge mode, determine current charge mode, send the charge mode control signal to described defibrillation charhing unit; And be used for the described defibrillation discharge cell of control and discharge;
Described defibrillation charhing unit is used for according to described charge mode control signal, carries out the defibrillation charging with described definite corresponding charge rate of current charge mode;
Described defibrillation discharge cell is used for the control according to described defibrillation control unit, and the electric weight of the defibrillation charging of described defibrillation charhing unit is discharged by electrode with the energy level of current setting.
Further, described defibrillation charhing unit mainly comprises pulse-width modulation PWM controller, MOS (metal-oxide-semiconductor) memory MOSFET, the transformer that connects successively, wherein:
The grid of described MOSFET connects the output of described PWM controller, and its drain electrode is by divider resistance R1 ground connection, and its source electrode connects an end of the primary coil of transformer; Another termination power of described transformer; An input of described PWM controller receives the charge rate control signal from the defibrillation control unit, and its another input connects the drain electrode of described MOSFET; The secondary coil of described transformer is in series with diode D1 and capacitor C 1.
Further, described defibrillation control unit comprises:
The parameter information acquiring unit is for the parameter current information of obtaining described battery from described battery unit;
The charge mode determining unit is used for determining current charge mode according to the battery parameter information that sets in advance and the corresponding relation of charge mode that each charge mode is corresponding to a charge rate;
The control signal generation unit, be used for according to the determined current charge mode of described charge mode determining unit, generate a charge mode control signal, send to described defibrillation charhing unit, be used for the described defibrillation charhing unit of control and carry out the defibrillation charging according to described definite corresponding charge rate of current charge mode.
Further, described charge mode determining unit is determined described charge mode according to following corresponding relation:
In the self check stage, when the electric core temperature value that determines described battery is lower than preset first threshold value, determine that described current charge mode is the first trickle charge pattern;
When the electric core access times that continue to determine described battery are higher than second threshold value, determine that described current charge mode is the second trickle charge pattern;
When the charge value that continues to determine described battery is lower than the 3rd threshold value, determine that described current charge mode is the 3rd trickle charge pattern;
Otherwise, determine that current charge mode is normal charge mode;
Wherein, the charge rate difference of the described first trickle charge pattern, the second trickle charge pattern, the 3rd trickle charge pattern, and be lower than the speed that charges normal of described defibrillator.
Further, described charge mode determining unit is determined described charge mode according to following corresponding relation:
In the charging stage, when the voltage that determines described battery two ends less than the 4th threshold value, or electric current determines that greater than the 5th threshold value described current charge mode is the 3rd trickle charge pattern, otherwise determines that described current charge mode is normal charge mode.
Further, described parameter information comprises in magnitude of voltage, current value or the internal battery impedance at the electric core temperature value of described battery, electric core access times, charge value, battery two ends at least one.
Further, described charge mode control signal comprises charging enable signal and charge rate control signal; Whether described defibrillation control unit is controlled the defibrillation discharge cell and can be discharged by the discharge enable signal, and by the first phase control information and second phase control signal control two-way ripple first with the discharge sequential of second phase.
A kind of self adaptation that the embodiment of the invention provides is adjusted method and the defibrillator of charge rate, can before carrying out the defibrillation charging, at first carry out battery parameter information and judge that Rule of judgment comprises ambient temperature, battery cycle-index, battery electric quantity, voltage and electric current etc.Can comprehensively judge for these conditions, also can only get one of them condition, be chosen in the charge rate of defibrillation charging according to judged result.By at inclement condition, perhaps battery uses when being not in good state, and (reductions) charge rate that in time automaticallyes switch can improve the success rate of defibrillation charging, thereby the risk of undesirable condition appears in the reduction defibrillator.
Further, because its voltage of real-time detection and the electric current that carry out in charging process, from the essence of electric core ability, even like this in the charging process, battery goes wrong suddenly and also can finish charging as far as possible.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the change in voltage trend schematic diagram of a kind of common lithium ion battery under different temperatures;
Fig. 2 is the structural representation of general a kind of defibrillator;
Fig. 3 is the primary structure signal among the embodiment of defibrillator provided by the invention;
Fig. 4 is the structural representation of defibrillation control unit among Fig. 3;
Fig. 5 is the electrical block diagram of defibrillation charhing unit among Fig. 4;
Fig. 6 is the schematic flow sheet of an embodiment of the self adaptation provided by the invention method of adjusting charge rate;
Fig. 7 is at the schematic flow sheet in self check stage among the embodiment of the self adaptation provided by the invention method of adjusting charge rate;
Fig. 8 is at the schematic flow sheet of charging stage among the embodiment of the self adaptation provided by the invention method of adjusting charge rate.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The present invention mainly is the parameter current information according to defibrillator battery, comes self adaptation to adjust the charge rate of defibrillation charging process, thereby improves reliability and the success rate of defibrillation charging.
As shown in Figure 2, be the structural representation of general a kind of defibrillator.As can be seen from the figure, this defibrillator mainly comprises master control system, and be connected battery unit, charge/discharge unit, EGC front end, pedometer, anticipated mortality pattern (mortality prediction models, MPM) parameter unit, keypad, display, system peripheral interface and memory etc. on this master control system.The present invention is mainly by improving to realize purpose of the present invention to master control system and charge/discharge unit.By reference to the accompanying drawings following, method provided by the invention and device are elaborated.
As shown in Figure 3, be primary structure schematic diagram among the embodiment of defibrillator provided by the invention.Single 2 yuan of defibrillation control, defibrillation charhing unit 3 and defibrillation discharge cell 4 that defibrillator of the present invention comprises battery unit 1, is connected with battery unit 1, wherein:
Battery unit 1 is that in one embodiment, this battery unit 1 can comprise battery (rechargeable battery or disposable battery) and battery intelligent management parts to the unit of other unit supply electric energy, and the parameter information of this battery unit 1 allows to be read out.Wherein, the parameter information of this battery unit 1 includes but not limited in the internal driving of magnitude of voltage, current value or electric core at the electric core temperature value of described battery, electric core access times, charge value, battery two ends at least one;
Defibrillation charhing unit 3 is used for according to the charge mode control signal from defibrillation control unit 2, carries out the defibrillation charging with described definite corresponding charge rate of current charge mode;
Defibrillation discharge cell 4 is used for the control according to defibrillation control unit 2, and the electric weight of the defibrillation charging of defibrillation charhing unit is discharged by electrode with the energy level of current setting, and the discharge circuit in defibrillation discharge cell 4 adopts the discharge of two-way ripple usually.
As can be seen, defibrillation control unit 2 is read current information of voltage (V_bat), current information (I_bat) and the temperature information (T_bat) etc. of battery from battery unit 1 from the embodiment of Fig. 3, among the figure only for having listed above-mentioned three kinds of information for example; Whether defibrillation control unit 2 is controlled defibrillation discharge cell 4 and can be discharged by discharge enable signal (SHOCK_ENABLE), by the first phase control information (PHASE1_CTRL) and second phase control signal (PHASE2_CTRL) control two-way ripple first with the discharge sequential of second phase.Defibrillation control unit 2 is controlled the charge rate of defibrillation charhing unit 2 by the charge mode control signal, particularly, this charge mode control signal can comprise: charging enable signal (CHG_ENABLE) and different charge rate control signal (CHG_RATE_CTRL1, CHG_RATE_CTRL2 ... CHG_RATE_CTRLn), wherein, the numerical value of different charge rates can be set according to different use scenes particularly, be that n can arrange according to actual conditions, General System 2-3 level can satisfy conventional demand.In one embodiment, each grade charge rate control signal system all can connect an independent hardware port, receives a charge rate control signal by an independent hardware port.
Be understandable that, Fig. 3 only shows some main being used for of defibrillator of the present invention and controls the parts that defibrillation discharges and recharges, and in some specific embodiments, should have the parts of realizing other functions, as memory, display, keypad etc., specifically can be referring to the structural representation of Fig. 2.
As shown in Figure 4, be the structural representation of defibrillation control unit among Fig. 3; This defibrillation control unit 2 comprises:
Parameter information acquiring unit 20, be used for obtaining from described battery unit the parameter current information of described battery, described parameter information comprises in the magnitude of voltage, current value, internal battery impedance at the electric core temperature value of battery, electric core access times, charge value, battery two ends at least one;
Charge mode determining unit 22, be used for according to the battery parameter information that sets in advance and the corresponding relation of charge mode, determine current charge mode, each charge mode is corresponding to a charge rate, particularly, the corresponding relation of this battery parameter information and charge mode can be with such as searching in the memory that tableau format is stored in defibrillator in advance;
Control signal generation unit 24, be used for according to described charge mode determining unit 22 determined current charge modes, generate a charge mode control signal, send to defibrillation charhing unit 3, be used for control defibrillation charhing unit 3 and carry out the defibrillation charging according to described definite corresponding charge rate of current charge mode.
Wherein, charge mode determining unit 22 can be determined current charge mode according to the corresponding relation that sets in advance, and for example in one embodiment, the corresponding relation of this battery parameter information and charge mode is:
In the self check stage, when the electric core temperature value that determines described battery is lower than preset first threshold value, determine that current charge mode is the first trickle charge pattern;
When the electric core access times that continue to determine described battery are higher than second threshold value, determine that current charge mode is the second trickle charge pattern;
The voltage that is lower than the 3rd threshold value, described battery two ends when the charge value that continues to determine described battery greater than the 4th threshold value, determines that current charge mode is the 3rd trickle charge pattern less than the 4th threshold value or electric current;
Otherwise, determine that current charge mode is normal charge mode;
In the charging stage, when the voltage that determines the battery two ends less than the 4th threshold value, or electric current determines that greater than the 5th threshold value current charge mode is the 3rd trickle charge pattern, otherwise determines that current charge mode is normal charge mode.
Wherein, the charge rate difference of the described first trickle charge pattern, the second trickle charge pattern, the 3rd trickle charge pattern (for example successively reduce), and all be lower than the charge rate of normal charge mode.
Be understandable that above-mentioned corresponding relation only is a kind of giving an example, and in different application places, can adopt different corresponding relations, and first threshold to the five threshold values can adopt different values.Above-mentioned corresponding relation can be stored in such as in the memory, and can adopt keypad to change the value of above-mentioned corresponding relation and first threshold to the five threshold values.
As shown in Figure 5, be the electrical block diagram of defibrillation charhing unit among Fig. 4; Therefrom as can be seen, the circuit of this defibrillation charhing unit 3 mainly comprise connect PWM(Pulse Width Modulation, pulse-width modulation successively) controller, MOSFET(MOS (metal-oxide-semiconductor) memory) S1 and transformer S2, wherein:
The grid of this MOSFET connects the output of PWM controller, and its drain electrode is by divider resistance R1 ground connection, and its source electrode connects an end of the primary coil of transformer S2; Another termination power VCC of described transformer S2 primary coil; An input of described PWM controller receives the charge rate control signal (CHG_RATE_CTRL) from defibrillation control unit 2, and another input connects the drain electrode of described MOSFET pipe; The secondary coil of described transformer S2 is in series with diode D1 and capacitor C 1.
In this circuit, the voltage that charge rate control signal CHG_RATE_CTRL and divider resistance R1 sample compares, the PWM controller amplifies the difference signal of this comparison, controlling the source class of described MOSFET and the current value between the drain electrode changes, thereby the magnitude of voltage on the control transformer S2 primary coil, because the transformer action of transformer, thereby change the magnitude of voltage on the transformer S2 secondary coil, finally can control the size of current of charging, finish the charge rate of automatic adjustment defibrillation charging.So only need choose the charge rate that different charge rate control signals namely can be controlled the defibrillation charging.
Be understandable that, in other distortion of the present invention, also can adopt similar circuit to come by choosing the charge rate that different charge rate control signals changes the defibrillation charging, should be all within the scope of protection of the invention.
As shown in Figure 6, be the schematic flow sheet of an embodiment of the self adaptation provided by the invention method of adjusting charge rate; As can be seen, method of the present invention mainly comprises the steps: in this flow chart
Step S60, obtain the parameter current information of defibrillator battery, described parameter information comprises in magnitude of voltage, current value or the internal driving at the electric core temperature value of described battery, electric core access times, charge value, battery two ends at least one, in specific embodiment, the defibrillation control unit obtains the parameter current information of described battery from battery unit;
Step S62 according to the battery parameter information that sets in advance and the corresponding relation of charge mode, determines current charge mode, the corresponding charge rate of each charge mode;
Step S64 carries out the defibrillation charging according to the corresponding charge rate of described definite charge mode for the defibrillation charhing unit.
Above-mentioned Fig. 6 has provided the signal of main flow chart of the present invention, is convenient to understand, and followingly provides that an embodiment describes in the method provided by the invention.
As shown in Figure 7, adjust among the embodiment of method of charge rate schematic flow sheet in the self check stage for self adaptation provided by the invention;
Before charging, defibrillator need at first carry out the self check process, to confirm ambient condition.
At step S70, the defibrillation control unit at first reads the current electric core temperature of battery from battery unit, and judge whether this electricity core temperature is lower than first threshold (as 0 ℃), if judged result is for being, determine that then current charge mode is the first trickle charge pattern, otherwise determine that current charge mode is normal charge mode;
At step S72, continue to detect the current cycle time (being the access times of electric core) of battery, the defibrillation control unit at first reads the current cycle time of battery from battery unit, and judge that whether this cycle-index is greater than second threshold value of setting (for example value of 100-200), if judged result is for being, determine further that then current charge mode is the second trickle charge pattern, if the judgment is No, does not then make amendment to determined current charge mode among the step S70;
At step S74, continue to detect the electric weight of battery, the defibrillation control unit at first reads the electric weight of battery from battery unit, and judge whether this electric weight is lower than the 3rd threshold value of setting (for example 5%), if judged result is for being, determine further that then current charge mode is the 3rd trickle charge pattern, if judged result is not then made amendment to determined current charge mode among the step S72 for not;
In step S76, to carry out the defibrillation charging through the determined current charge mode of abovementioned steps.
Wherein, the charge rate difference of the first trickle charge pattern, the second trickle charge pattern, the 3rd trickle charge pattern (as reducing successively), and all less than the charge rate of normal charge mode.
Be provided with four kinds of charge modes in the present embodiment, be understandable that, in other embodiment, also more charge mode can be set, charge mode still less perhaps is set.And the order of judging also can adjust, and for example can judge the battery current cycle time earlier, judges the electric core temperature of battery again, and these variations all can be adjusted according to actual needs.
As shown in Figure 8, adjust among the embodiment of method of charge rate schematic flow sheet in the charging stage for self adaptation provided by the invention.
In charging process, the present invention is voltage and the electric current of monitoring battery directly.Because in battery discharge procedure, these two parameters have directly reflected the discharge capability of electric core.
At step S80, charge initiation;
At step S81, the defibrillation control unit obtains the current voltage and current value of battery from battery unit, and whether judge when the magnitude of voltage of front end less than the 4th threshold value (as 10V) or its electric current greater than the 5th threshold value (as 10A), when specific implementation, can periodically carry out this step, for example just carry out once the work of this step every one minute.
If the judgment is Yes, then at step S83 charge mode is switched to the 3rd trickle charge pattern.Otherwise, adopt normal charge mode at step S82; This be because: in practice, for the discharge battery of 14.8V, voltage threshold is generally more than 10V, and generally below 10A, when surpassing this threshold value, protection may appear to electric current in battery, causes the system can't operate as normal.Need reduce charging current immediately, guarantee the operate as normal of system, satisfy the successful demand of charging to greatest extent.If particularly battery single-unit fault does not detect at ordinary times, only in charging, could find the unusual of curtage, at this moment only carry out effective charge rate control, reduce charge rate, thereby reduced charging current, reduced the battery pressure drop, just can guarantee to charge and finish smoothly;
Whether step S84 detects charging and finishes;
Finish if detect charging, then stop charging at step S85, and the prompting charging is finished; Otherwise, return step S82, proceed to charge normal.
The method of adjusting charge rate from defibrillator provided by the invention and self adaptation as can be seen.Before carrying out the defibrillation charging, at first carry out battery parameter information and judge that Rule of judgment comprises ambient temperature, battery cycle-index, battery electric quantity, voltage and electric current etc.Can comprehensively judge for these conditions, also can only get one of them condition, be chosen in the charge rate of defibrillation charging according to judged result.By at inclement condition, perhaps battery uses when being not in good state, and (reductions) charge rate that in time automaticallyes switch can improve the success rate of defibrillation charging, thereby the risk of undesirable condition appears in the reduction defibrillator.
Further, because its voltage of real-time detection and the electric current that carry out in charging process, from the essence of electric core ability, even like this in the charging process, battery goes wrong suddenly and also can finish charging as far as possible.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in above-described embodiment method, be to instruct relevant hardware to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
Above disclosed is a kind of preferred embodiment of the present invention only, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of doing according to claim of the present invention still belongs to the scope that the present invention is contained.
Claims (10)
1. the method for a self adaptation adjustment charge rate is characterized in that, comprising:
Obtain the parameter current information of defibrillator battery, described parameter information comprises in magnitude of voltage, current value or the internal battery impedance at the electric core temperature value of described battery, electric core access times, charge value, battery two ends at least one;
According to the battery parameter information that sets in advance and the corresponding relation of charge mode, determine current charge mode, the corresponding charge rate of each charge mode;
Be that defibrillator carries out defibrillation charging according to described definite corresponding charge rate of current charge mode.
2. self adaptation as claimed in claim 1 is adjusted the method for charge rate, it is characterized in that the battery parameter information that described basis sets in advance and the corresponding relation of charge mode determine that current charge mode comprises, in the self check stage:
When the electric core temperature value that determines described battery is lower than preset first threshold value, determine that described current charge mode is the first trickle charge pattern;
When the electric core access times that continue to determine described battery are higher than second threshold value, determine that described current charge mode is the second trickle charge pattern;
When the charge value that continues to determine described battery is lower than the 3rd threshold value, determine that described current charge mode is the 3rd trickle charge pattern;
Otherwise, determine that described current charge mode is normal charge mode;
Wherein, the charge rate difference of the described first trickle charge pattern, the second trickle charge pattern, the 3rd trickle charge pattern, and be lower than the charge rate of the normal charge mode of described defibrillator.
3. self adaptation as claimed in claim 1 or 2 is adjusted the method for charge rate, it is characterized in that the battery parameter information that described basis sets in advance and the corresponding relation of charge mode determine that current charge mode further is:
In the charging stage, when the voltage that determines described battery two ends less than the 4th threshold value, or electric current determines that greater than the 5th threshold value described current charge mode is the 3rd trickle charge pattern, otherwise determines that described current charge mode is with normal charge mode.
4. a defibrillator is characterized in that, the defibrillation control unit that comprise battery unit, is connected with battery unit, defibrillation charhing unit and defibrillation discharge cell is characterized in that, wherein,
Described defibrillation control unit, be used for obtaining from described battery unit the parameter information of current battery, and according to the battery parameter information that sets in advance and the corresponding relation of charge mode, determine current charge mode, send the charge mode control signal to described defibrillation charhing unit; And be used for the described defibrillation discharge cell of control and discharge;
Described defibrillation charhing unit is used for according to described charge mode control signal, carries out the defibrillation charging with described definite corresponding charge rate of current charge mode;
Described defibrillation discharge cell is used for the control according to described defibrillation control unit, and the electric weight of the defibrillation charging of described defibrillation charhing unit is discharged by electrode with the energy level of current setting.
5. defibrillator as claimed in claim 4 is characterized in that, described defibrillation charhing unit mainly comprises pulse-width modulation PWM controller, MOS (metal-oxide-semiconductor) memory MOSFET, the transformer that connects successively, wherein:
The grid of described MOSFET connects the output of described PWM controller, and its drain electrode is by divider resistance R1 ground connection, and its source electrode connects an end of the primary coil of transformer; Another termination power of described transformer; An input of described PWM controller receives the charge rate control signal from the defibrillation control unit, and its another input connects the drain electrode of described MOSFET; The secondary coil of described transformer is in series with diode D1 and capacitor C 1.
6. defibrillator as claimed in claim 5 is characterized in that, described defibrillation control unit comprises:
The parameter information acquiring unit is for the parameter current information of obtaining described battery from described battery unit;
The charge mode determining unit is used for determining current charge mode according to the battery parameter information that sets in advance and the corresponding relation of charge mode that each charge mode is corresponding to a charge rate;
The control signal generation unit, be used for according to the determined current charge mode of described charge mode determining unit, generate a charge mode control signal, send to described defibrillation charhing unit, be used for the described defibrillation charhing unit of control and carry out the defibrillation charging according to described definite corresponding charge rate of current charge mode.
7. defibrillator as claimed in claim 6 is characterized in that, described charge mode determining unit is determined described current charge mode according to following corresponding relation:
In the self check stage, when the electric core temperature value that determines described battery is lower than preset first threshold value, determine that described current charge mode is the first trickle charge pattern;
When the electric core access times that continue to determine described battery are higher than second threshold value, determine that described current charge mode is the second trickle charge pattern;
When the charge value that continues to determine described battery is lower than the 3rd threshold value, determine that described current charge mode is the 3rd trickle charge pattern;
Otherwise, determine that described current charge mode is normal charge mode;
Wherein, the charge rate difference of the described first trickle charge pattern, the second trickle charge pattern, the 3rd trickle charge pattern, and be lower than the charge rate of the normal charge mode of described defibrillator.
8. defibrillator as claimed in claim 6 is characterized in that, described charge mode determining unit is determined described charge mode according to following corresponding relation:
In the charging stage, when the voltage that determines described battery two ends less than the 4th threshold value, or electric current determines that greater than the 5th threshold value described current charge mode is the 3rd trickle charge pattern, otherwise determines that described current charge mode is normal charge mode.
9. as each described defibrillator of claim 4 to 8, it is characterized in that described parameter information comprises in magnitude of voltage, current value or the internal battery impedance at the electric core temperature value of described battery, electric core access times, charge value, battery two ends at least one.
10. defibrillator as claimed in claim 9 is characterized in that, described charge mode control signal comprises charging enable signal and charge rate control signal; Whether described defibrillation control unit is controlled the defibrillation discharge cell and can be discharged by the discharge enable signal, and by the first phase control information and second phase control signal control two-way ripple first with the discharge sequential of second phase.
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